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Developer Tools

Essential tools for developers: JSON, Base64, encoders, CSS, and web dev helpers. 253 tools. All free, no signup.

Regex Tester

Test regular expressions live with match highlighting.

JWT Decoder

Decode JWT token header and payload right in your browser.

Hash Generator

Generate MD5, SHA-1 and SHA-256 hashes from text or files.

UUID Generator

Generate bulk UUIDs up to 1000 at once.

Unix Timestamp Converter

Convert epoch timestamps to date and time with PKT support.

HTML Formatter

Format or minify HTML and CSS code.

JS Minifier

Minify or beautify JavaScript and see the size you saved.

Meta Tag Generator

Generate SEO and Open Graph meta tags with a live preview.

Robots.txt Generator

Create a robots.txt file for your website with ease.

CSS Gradient Generator

Create beautiful gradients and copy ready CSS code.

Diff Checker

Compare two texts or code snippets line by line.

Basic Auth Header Generator

Generate HTTP Basic Authorization headers from username and password

Border Radius Generator

Design fancy border radius shapes and copy the CSS code

Box Shadow Generator

Create CSS box shadows visually and copy ready to use code

Chmod Calculator

Calculate Linux file permissions and get the chmod command instantly

Credit Card Validator

Validate card numbers with Luhn check and detect the card brand

Cron Expression Generator

Build cron schedules visually and see the next run times

CSS Button Generator

Design custom CSS buttons visually and copy the final code

CSS Clamp Calculator

Calculate fluid font sizes with CSS clamp for responsive type

CSS Formatter and Beautifier

Format messy CSS into clean readable code with proper indentation

CSS Grid Generator

Create CSS grid layouts with rows columns and gaps visually

CSS Minifier

Minify CSS code to reduce file size and speed up websites

CSV to JSON Converter

Convert CSV data and files into clean JSON arrays instantly

Online CSV Viewer and Editor

Open and edit CSV files in a clean table with search and export

CSS Flexbox Generator

Build flexbox layouts visually and copy the generated CSS code

Glassmorphism Generator

Create frosted glass UI effects and copy the CSS code

Hex File Viewer

View any file as a hex dump with ASCII side by side inspection

HTML Entity Encoder Decoder

Encode special characters to HTML entities and decode them back

HTML Minifier

Minify HTML code by removing comments and extra whitespace

HTML Table Generator

Create HTML tables visually and copy clean table code instantly

IBAN Validator

Validate IBAN numbers for banks in Pakistan and worldwide

JSON to CSV Converter

Convert JSON arrays into downloadable CSV files in one click

JWT Encoder

Create and sign JSON Web Tokens with header payload and secret

Markdown Editor and Previewer

Write markdown with live preview and export HTML or a file download

Markdown Table Generator

Build markdown tables visually and copy clean table code

Password Strength Checker

Check password strength with entropy score and crack time estimate

PX to REM Converter

Convert pixels to REM EM and percent with a live size table

Semantic Version Checker

Compare semantic versions and check version range compatibility

SQL Formatter

Format SQL queries for MySQL PostgreSQL and standard SQL dialects

Text Shadow Generator

Create layered CSS text shadows visually with instant code

URL Parser

Break any URL into protocol host path port and query parts

User Agent Parser

Parse any user agent string into browser OS and device details

XML Formatter and Validator

Format validate and beautify XML with clear error locations

XML to JSON Converter

Convert XML documents into JSON objects and download the result

YAML to JSON Converter

Convert YAML to JSON and JSON back to YAML instantly

Fake Data Generator

Generate dummy names, emails and more

Cron Expression Explainer

Paste any cron expression and get a plain English explanation plus upcoming run times.

Content Security Policy Generator

Build a Content Security Policy header with an interactive directive picker.

CSS Easing Generator

Design cubic bezier easing curves visually and copy the finished CSS.

CSS Specificity Calculator

Calculate the specificity score of any CSS selector instantly.

cURL to Fetch Converter

Paste a cURL command and get equivalent JavaScript fetch code instantly.

DMARC Record Generator

Generate a DMARC DNS record with policy and reporting options.

Docker Compose Generator

Build a docker compose YAML with app database cache and queue services.

Dockerfile Generator

Generate starter Dockerfiles for Node Python PHP Go and Java applications.

File Hash Checksum Calculator

Drop any file to compute its MD5 SHA-1 and SHA-256 checksum locally.

Gitignore Generator

Build a gitignore file from templates for Node Python Java PHP and more.

HMAC Generator

Compute HMAC SHA-256 or SHA-512 authentication codes with your secret key.

Htaccess Generator

Generate Apache htaccess rules for redirects HTTPS www and browser caching.

Htpasswd Generator

Generate htpasswd entries to password protect Apache directories.

HTTP Status Code Reference

Searchable reference of every HTTP status code with meanings and fix tips.

JSON-LD Generator

Generate JSON-LD structured data for FAQ Article Product and more types.

JSON to TypeScript Converter

Paste JSON and generate TypeScript interfaces automatically.

JSON to XML Converter

Convert JSON data into clean XML format instantly, with no upload needed.

JSONPath Tester

Test JSONPath expressions against your JSON and see every match live.

JWT Signature Verifier

Verify HS256 HS384 and HS512 JWT signatures with your secret, entirely in the browser.

LLMs.txt Generator

Generate an llms.txt file so AI assistants can understand your site.

Nginx Config Generator

Generate nginx server blocks for reverse proxy SSL and static sites.

Open Graph Generator

Generate Open Graph and Twitter Card meta tags with a live preview.

PKCE Code Generator

Generate PKCE code verifier and challenge pairs for OAuth 2.0 flows.

Clip Path Generator

Create CSS clip-path shapes with a visual editor and copy the ready to use code

CSS Animation Generator

Build CSS keyframe animations with live preview and copy the finished code

HTML to JSX Converter

Convert plain HTML into React JSX with fixed class names and self closing tags

Markdown to HTML Converter

Convert Markdown text into clean HTML with a live side by side preview

HTML to Markdown Converter

Turn HTML markup into clean readable Markdown text instantly

JSON Schema Generator

Generate a valid JSON Schema automatically from any sample JSON data

TOML to JSON Converter

Convert TOML configuration files into JSON format right in your browser

CSV to SQL Converter

Turn CSV rows into SQL INSERT statements with table and column options

DNS Lookup Tool

Look up DNS records like A, MX, TXT, CNAME and NS for any domain

SPF Record Generator

Build a valid SPF TXT record for your domain with a DNS lookup counter

TOTP Code Generator

Generate time based one time passwords from a secret key fully offline

WebSocket Tester

Connect to any WebSocket server and send and receive messages in real time

AES Encrypt Decrypt

Encrypt and decrypt text with AES-256 using your own password, fully client side

RSA Key Pair Generator

Create RSA public and private keys in PEM format without any server

Passphrase Generator

Create strong memorable passphrases from random common words

Permissions Policy Generator

Build a Permissions-Policy header to control camera, mic and other browser features

GitHub Actions Workflow Generator

Generate CI workflow YAML for Node, Python, PHP and Laravel projects

Kubernetes YAML Generator

Generate Kubernetes Deployment and Service YAML manifests with a simple form

package.json Generator

Build a valid package.json file with scripts and dependencies through a form

README Generator

Create a professional README.md with badges, install steps and usage sections

Open Source License Generator

Pick MIT, Apache 2.0 or GPL and generate a ready to use LICENSE file

Color Blindness Simulator

Preview how your images look to people with common types of color blindness

Logic Gate Simulator

Build simple digital circuits with AND OR NOT XOR gates and see live truth table outputs

LLM Token Cost Calculator

Estimate how much an AI API will cost you based on tokens used, model prices, and monthly usage.

Tailwind to CSS Converter

Paste Tailwind classes or markup and get plain CSS with real default values.

CSS Custom Scrollbar Generator

Design custom website scrollbars visually and copy cross browser CSS.

CSS Loading Spinner Generator

Build CSS loading spinners with live preview and copy the code.

Env File Generator

Build a clean .env file from key value pairs with sections and comments. Includes Laravel, Node and Docker presets, live formatting, copy and download.

JSON Diff Comparer

Compare two JSON objects and see added removed and changed fields.

Hex Color Name Finder

Paste any hex code and find the closest named web color.

Dark Mode CSS Generator

Turn light CSS into a prefers color scheme dark variant.

HTML Form Generator

Build HTML forms with fields and validation visually.

CSV to Markdown Converter

Convert CSV data into clean GitHub style markdown tables.

UUID Validator

Validate UUIDs and detect their version and variant.

Password Strength Tester

Test how strong your password is with crack time estimates and improvement tips, fully offline.

XPath Tester

Test XPath expressions against your XML and see matching nodes instantly.

JavaScript Formatter

Beautify and properly indent minified or messy JavaScript code.

Fetch to cURL Converter

Convert a JavaScript fetch call back into a ready-to-use cURL command.

Mock Data Generator

Generate realistic fake test data as JSON or CSV for your projects.

CSS Class Namer

Generate consistent CSS class names in BEM, kebab-case or camelCase style. Enter a block, add elements and modifiers, and get ready class names with sample CSS.

Regex Pattern Tester

Test regular expressions live against your text. Match highlighting, flags, groups, replace preview and ready-made pattern presets.

cURL Command Builder

Build cURL commands visually. Set method, URL, headers, body and auth, then copy a ready-to-run command.

Crontab Schedule Generator

Create cron expressions the easy way. Pick minute, hour, day and weekday, see a plain English summary and the next run times.

HTTP Status Code Lookup

Look up any HTTP status code. Search by number, filter by category, and see what each code means and what to do.

UUID Generator

Generate UUID v4 identifiers in bulk. Choose count and format, copy one or all, download as text, or validate any UUID.

Markdown Table Maker

Create Markdown tables visually. Edit cells in a grid, set column alignment, and copy the generated Markdown instantly.

JSON Path Extractor

Extract values from any JSON using path expressions like users[0].name or store.book[*].title. Live results with full paths and copy.

Base64 Image Encoder

Convert any image to a Base64 data URI in your browser. Preview, compare sizes, copy the code or download it.

Git Commit Message Builder

Write clean Conventional Commits with a type picker, scope, subject length check and breaking change footer. Live preview and copy.

Visual Regex Builder

Build regular expressions by clicking blocks: anchors, classes, quantifiers and groups. Live test, match highlighting and plain English explanations.

Font Pairing Finder

Explore 24 curated Google Font pairings with live previews. Filter by style, edit the sample text and copy ready CSS.

Keyboard Shortcut Trainer

Learn and quiz yourself on real keyboard shortcuts for VS Code, Chrome, Windows, Excel and Gmail. Score and streak tracking.

Changelog Generator

Create a clean Keep a Changelog file: version entries, change categories, git log import, live markdown preview, copy and download.

JWT Token Decoder

Decode any JWT token in your browser: header and payload JSON, claims table with expiry check, copy buttons, no data leaves your device.

SQL Query Formatter

Format messy SQL into readable code: clause indentation, keyword case options, string safe tokenizer, copy and download formatted SQL.

JSON Diff Checker

Compare two JSON documents side by side: added, removed and changed keys with paths, color coded results and diff statistics.

CSS to Tailwind Converter

Convert vanilla CSS declarations to Tailwind classes: per line mapping table, honest no equivalent warnings, copyable class string.

Regex Pattern Explainer

Understand any regex pattern: plain English token by token breakdown, live test with match highlighting, flags and group captures.

Docker Run Command Builder

Build docker run commands visually: image, ports, volumes, environment variables, restart policy and network mode, with live preview and one click copy.

Webhook Payload Inspector

Inspect webhook payloads in your browser: collapsible JSON tree with type badges, JSONPath copy on click, search, counts and a live sample.

JWT Token Builder

Build a signed JWT in your browser: header and payload JSON, HS256 HS384 or HS512, your secret, instant signed token. Nothing leaves your device.

Text Diff Checker

Compare two texts online: line by line diff with word level highlights, side by side or unified view, change stats and similarity score.

CSS Selector Tester

Test any CSS selector against your HTML in the browser: match count, matched elements list, highlighted preview and specificity breakdown.

Base32 Encoder Decoder

Encode text to Base32 and decode Base32 back to text (RFC 4648) in your browser, with validation errors, byte sizes and copy support.

SVG to Data URI Converter

Paste SVG code or upload a file to get URL encoded and Base64 data URIs with live preview, size comparison and a CSS background snippet.

Subnet Calculator

Enter an IPv4 address and CIDR or mask to get network, broadcast, usable hosts, wildcard mask, binary form and IP class.

API Latency Tester

Measure API endpoint response times in your browser: test one or many URLs with GET or POST, latency color coding, min max average summary and CORS failure notes.

ENV File Parser

Parse .env file content into a clean table: keys and values with type detection, secret leak warnings, duplicate key and malformed line detection, JSON and table export.

Git Cheat Sheet Generator

Build a printable git cheat sheet for your workflow: first commit, branching, merging, undoing mistakes, remote sync and stash, with copy and download.

Webhook Debugger

Inspect webhook payloads in your browser: syntax highlighted JSON, dotted key path table, event type guess, timestamp conversion, nothing leaves your device.

OAuth Token Inspector

Inspect access tokens in your browser: auto decodes JWT header and claims with expiry badges, or analyzes opaque tokens for length and entropy, nothing is sent anywhere.

CSS Flexbox Cheat Sheet

Master CSS Flexbox with live interactive demos: flex direction, justify content, align items, wrap and gap controls, with one click CSS copy.

Linux Command Cheat Sheet

Searchable Linux command reference: file, permission, networking, process and disk commands with plain English explanations and one click copy.

Regex Visual Explainer

Understand any regular expression: token by token plain English breakdown, live match highlighting and warnings for common regex mistakes.

Cron Expression Visualizer

Read any cron expression in plain English: human readable schedule plus the next 5 run times computed in your browser.

Git Diff Viewer

Compare two text versions side by side: added and removed lines highlighted, line numbers, one click copy and clear, all in your browser.

API Response Beautifier

Beautify API responses in your browser: auto detects JSON, XML or plain text, pretty print with syntax highlighting and collapsible nodes.

JWT Debugger

Decode any JWT in your browser: header and payload JSON, expiry check, algorithm warning and claim summary. Nothing is uploaded.

JSON Schema Validator

Validate JSON against a JSON Schema in your browser: draft 7 subset with clear error paths for every failed rule.

Tailwind CSS Cheat Sheet

Searchable Tailwind CSS reference: 136 utility classes in 8 categories with plain English descriptions and click to copy.

Password Breach Checker

Check if your password appeared in known data breaches: secure k anonymity lookup, your password never leaves your browser.

AI Prompt Improver

Turn a rough idea into a clear AI prompt with role, task and constraints, plus tone and format options and one-click copy.

AI Prompt Builder

Build polished AI prompts step by step from role, goal, context, tone and format fields, with live assembly and copy button.

Color Picker Online

Pick any color and copy HEX, RGB and HSL values with one click, plus saved swatches.

Random Color Generator

Generate random colors with a lockable 5 color palette, copy codes and a history strip.

JSON to TypeScript

Paste JSON and get clean TypeScript interfaces instantly, nested objects, arrays and optional fields handled.

SQL Formatter

Format messy SQL into clean readable queries, keyword casing, indentation and clause line breaks.

AI Prompt Generator

Build polished AI prompts in seconds, pick a task type and tone, get three ready to copy prompts.

AI Token Counter

Estimate AI tokens in your text plus words and characters, with an adjustable cost estimate.

Standup Meeting Timer

Run focused daily standups with per-person timers, auto-advance and a saved team roster.

Screen Size Finder

See your live viewport size, screen resolution, pixel ratio and breakpoint instantly.

Cron Expression Parser

Explain any cron expression in plain English with a field breakdown and the next 8 run times.

JWT Token Generator

Create HS256 signed JWT tokens in the browser and decode or verify any token offline.

Markdown Preview Editor

Write Markdown and see the formatted result live, then copy or download the HTML.

CSS Code Beautifier

Format minified CSS with clean indentation, one declaration per line and preserved comments.

Git Commit Message Helper

Build proper Conventional Commits messages with type, scope, subject rules and copy ready git commands.

Nginx Config Helper

Generate ready nginx server blocks for static sites, reverse proxies and PHP FPM with SSL, gzip and security options.

Code Comment Stripper

Remove comments from JS, CSS, HTML, Python and PHP code safely without touching strings.

Env File Validator

Lint your .env file for duplicates, bad keys, unquoted spaces and common mistakes, all locally in your browser.

SQL to CSV

Convert SQL INSERT statements into CSV with proper quote, comma and NULL handling.

Docker Compose Builder

Build docker-compose YAML visually with services, ports, environment variables and volumes.

JSON Diff Tool

Compare two JSON documents side by side and see added, removed and changed values.

CSS Grid Layout Builder

Design CSS grid layouts visually and copy the generated grid CSS code.

SQL Query Builder Online

Build SQL SELECT and INSERT queries with a visual form, no manual syntax needed.

Makefile Generator

Build a Makefile from your targets and dependencies: variables, phony targets and common recipes. Free.

SSH Config Generator

Generate an SSH config file for your servers with aliases, keys, ports and jump hosts. Free.

Linux Command Builder

Build tar, grep, find and rsync commands step by step: pick options, get the exact command with a plain English explanation. Free.

Schema Markup Generator

Generate JSON-LD schema markup for Article, LocalBusiness, Product, Event and more. Copy or download the code. Free.

Interactive Git Cheatsheet

Searchable Git cheatsheet with 50 essential commands, plain English explanations and one-click copy. Free.

JSON to CSV Converter

Convert JSON to CSV online: paste your JSON, preview the table and download a clean CSV file. Free.

Unicode Character Inspector

Inspect any text character by character: code points, UTF-8 bytes, HTML entities and categories. Free.

ASCII Table

Full ASCII table 0 to 127 plus extended Latin-1: decimal, hex, binary, characters and HTML entities with search. Free.

PEM Certificate Decoder

Decode PEM certificates, CSRs and keys: subject, issuer, expiry dates, key size and fingerprint. Runs in your browser. Free.

Browser Info Checker

See your browser version, OS, screen size, viewport, cookies, WebGL and more in one page. Free.

API Request Builder

Build an API request visually and get ready-to-paste cURL, JavaScript fetch and Python requests code. Free.

HTTP Header Inspector

Paste raw HTTP response headers and get a plain English explanation of each one plus a security checklist. Free.

DNS Records Guide

Learn every DNS record type with examples, convert TTL to readable time, and copy dig and nslookup commands. Free.

GraphQL Query Builder

Pick fields from a sample schema and instantly generate a formatted GraphQL query string to copy. Free.

Bash Script Generator

Build a ready to run bash script with strict mode, argument parsing, logging, traps and safety checks. Copy or download the generated script. Free.

Git Branch Name Generator

Create clean kebab-case Git branch names from type, scope, ticket and description. Includes the checkout command and a name history. Free.

tsconfig.json Generator

Generate a valid tsconfig.json with presets for Node, React and libraries, strict flags and include paths. Copy or download the file. Free.

ESLint Config Generator

Build an ESLint flat config for JavaScript, React, Vue, Node or TypeScript with your code style and rule severities. Copy or download. Free.

Ansible Playbook Generator

Scaffold an Ansible playbook with apt, copy, template, service, shell, user and file tasks. Live YAML preview, copy or download. Free.

Postman Collection Builder

Build a Postman collection v2.1 JSON from your endpoints with methods, headers and bodies. Copy, download and import in one step. Free.

TypeScript Type Inference Playground

Paste TypeScript code and see how types get inferred for each variable, including literal widening, unions and return types. Free, no signup.

SSH Key Fingerprint Checker

Paste an OpenSSH public key to get its SHA256 and MD5 fingerprints, key type, bit length and weak key warnings. Free, runs in your browser.

package.json Dependency Audit

Paste a package.json file to audit dependencies for wildcard versions, latest tags, deprecated packages and risky patterns. Free.

Docker Compose Config Validator

Paste a docker compose file to validate structure, find bad depends_on references, latest tags and privileged containers. Free.

Git Rebase vs Merge Explainer

Interactive explainer that shows what happens when you merge or rebase a branch, with animated graphs, pros and cons and command cheat sheets. Free.

Linux Permission Octal Calculator

Convert between symbolic and octal Linux file permissions with an interactive checker, chmod command output and common presets. Free.

MAC Address Validator

Validate MAC addresses in any format, normalize output, and detect unicast multicast and locally administered bits.

AI Token Cost Estimator

Estimate your monthly AI API cost from token usage with current per-model pricing for popular models.

Cron Expression Builder

Build cron expressions visually with plain-English descriptions and next-run previews.

Commit Message Generator

Generate clean Conventional Commits messages with type, scope, subject, body and footer fields.

URL Slug Generator

Generate clean SEO URL slugs from any text with stop word removal, accent transliteration and batch mode.

HTML Accessibility Checker

Paste HTML to find accessibility issues: missing alt text, unlabeled inputs, empty buttons, heading order, duplicate IDs, with a score.

HTTP Header Security Analyzer

Paste HTTP response headers to grade security: HSTS, CSP, X-Frame-Options, cookie flags, and information disclosure.

IPv6 Subnet Calculator

Enter an IPv6 address and prefix to get the network address, address range, total addresses, and reverse DNS zone.

HTTP Caching Header Builder

Build correct Cache-Control headers interactively and get ready Nginx, Apache, and Express.js caching snippets.

JSON to GraphQL Schema Converter

Paste JSON to generate a GraphQL schema with inferred types, nested objects, and arrays. Copy or download the SDL.

Cloud Cost Comparison Calculator

Compare approximate monthly VM costs across AWS EC2, Google Compute Engine, and Azure by instance size and hours.

PWA Manifest Generator

Generate a PWA manifest.json with app details, theme colors, and auto-resized 192 and 512 icons from your logo upload.

CSP Security Header Builder

Build a Content Security Policy interactively with presets and get ready HTTP header, meta tag, htaccess, and Nginx snippets.

Cookie Consent Banner Generator

Design a GDPR style cookie consent banner with live preview and get ready-to-paste HTML, CSS, and JavaScript code.

CSS Grid Layout Generator

Build CSS grid layouts visually with a live preview and copy the generated CSS plus a matching HTML skeleton.

Flexbox Layout Visualizer

Learn CSS flexbox with an interactive playground: direction, alignment, wrap, and gap with live preview and CSS output.

Viewport Size Detector

See your live viewport size, screen resolution, pixel ratio, orientation, and current CSS breakpoint instantly.

Crontab Builder

Build cron schedules visually and get the exact crontab expression with plain English explanations.

API Status Code Explainer

Look up any HTTP status code and understand what it means for your API.

SQL Join Visualizer

See how INNER, LEFT, RIGHT and FULL joins work with live Venn diagrams and sample rows.

Code Diff Checker

Compare two texts or code files line by line with highlighted differences

SQL Query Builder

Build SELECT queries visually with filters, sorting and limits

SHA-256 Hash Generator

Generate SHA-256, SHA-1 and SHA-512 hashes for text and files

Git Command Builder

Generate correct git commands for commits, branches and pushes

CSS Box Shadow Generator

Design CSS box shadows visually with sliders and layers

Hex Text Converter

Convert text to hexadecimal and hex back to text with UTF-8 support, byte spacing option and clear input validation.

Octal Number Converter

Convert numbers between decimal, binary, octal and hexadecimal with live results and per-base input validation.

Vim Cheat Sheet

Searchable Vim keyboard shortcut reference with 60 plus commands across navigation, editing, search and macros, with click to copy.

NPM Command Generator

Generate correct npm, yarn and pnpm commands for installs, scripts, publishing and audits from a simple task picker.

OpenSSL Command Generator

Build ready to run OpenSSL commands for keys, CSRs, self signed certificates and format conversions.

API Key Generator

Create secure random API keys and tokens in hex, base64url and segmented formats using cryptographic randomness.

Open Source License Picker

Answer a short quiz to find the right open source license for your project, with a comparison table of popular licenses.

DoH Provider Checker

Test which DNS over HTTPS providers work on your network and compare response times across Cloudflare, Google, Quad9 and AdGuard.

.env File Validator

Validate environment file syntax line by line and catch spaces around equals signs, duplicate keys, unquoted values and common mistakes.

CSV to Markdown Table Converter

Turn CSV data into clean Markdown tables with delimiter options, alignment settings, live preview and one click copy or download.

Unix Timestamp Batch Converter

Convert batches of Unix timestamps to readable dates with auto detection of seconds and milliseconds, UTC and local times and relative time.

Twitter Card Meta Tag Generator

Build Twitter Card meta tags with a live card preview, character count warnings, image URL checks and optional Open Graph fallback tags.

Robots.txt Analyzer

Audit your robots.txt crawl rules to find site wide blocks, asset blocking, wildcard traps, contradictory rules and missing sitemaps.

Sitemap URL Extractor

Pull every URL from an XML sitemap or sitemap index with lastmod data, text filtering, copy and CSV download.

ChatGPT Prompt Library

Browse 24 ready-to-copy ChatGPT prompts for coding, writing, marketing, study, business and productivity, with search, category filters and a customize panel.

AI Agent Task Planner

Turn any goal into a phased task plan with numbered steps, dependencies and effort estimates. Track progress with checkboxes and export the plan as markdown.

Prompt Injection Tester

Defensive learning demo that scans an attacker message for classic prompt injection patterns, scores risk and gives fix tips.

SEO Title Tag Checker

Check a page title for SEO with pixel width estimation, keyword position and a live Google SERP preview.

Flexbox Playground

Try CSS flexbox live: change direction, alignment, wrap and gap and see the result instantly.

JWT Decoder Online

Decode JWT tokens free in your browser: header, payload, signature, expiry and claims.

Markdown Live Preview

Free online Markdown editor with live preview, HTML copy and clean formatting.

Regex Tester Online

Test regex patterns live with match highlighting, capture groups, flags and replace mode.

Rem to Px Converter

Convert rem to px and px to rem with any base font size, live as you type.

WiFi Speed Test

Test your internet download speed free in the browser with multi-run averaging and plain guidance on the result.

Browser Info Checker

See your browser, device, screen, GPU, network and timezone details instantly, all detected locally in your browser.

Password Entropy Meter

Measure password strength in entropy bits with crack-time estimates and clear improvement tips, all local.

Random Password and Passphrase Generator

Generate strong random passwords and memorable diceware-style passphrases with entropy ratings and copy buttons.

WHOIS Domain Lookup

Look up any domain name to see who owns it, when it was registered, when it expires, and which registrar manages it.

Nano ID Generator

Generate short URL friendly unique IDs for database keys and short links with custom length and alphabet options.

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