Free Developer Tools

33 powerful browser-based tools to accelerate your development workflow — no signup required.

QR Generator
Generate QR codes for URLs, text and more.
Utility 553 uses
CSS Minifier
Compress CSS to reduce file size.
Optimization 538 uses
Base64 Encoder
Encode and decode Base64 strings.
Encoding 527 uses
Word Counter
Count words, characters and analyse keyword density.
Content 470 uses
NEW
Markdown Editor
Write and preview Markdown in real-time. Convert to HTML instantly.
Content 365 uses
NEW
Regex Tester
Test and debug regular expressions in real-time with match highlighting.
Developer 415 uses
NEW
JWT Decoder
Decode and inspect JSON Web Tokens. Runs 100% in your browser.
Security 427 uses
NEW
Color Contrast Checker
Check WCAG AA/AAA accessibility contrast ratios for any colors.
Design 431 uses
NEW
Cron Expression Builder
Build and explain cron expressions visually with next run times.
Developer 427 uses
NEW
Timestamp Converter
Convert Unix timestamps to human dates and back. Live clock.
Developer 417 uses
Password Generator
Generate secure, random passwords with custom rules.
Security 548 uses
Meta Tag Generator
Create perfect SEO meta tags for any page.
SEO 562 uses
JSON Formatter
Format, validate and minify JSON data.
Formatting 565 uses
JS Minifier
Minify JavaScript for production.
Optimization 526 uses
Image Compressor
Compress images without visible quality loss.
Media 546 uses
Slug Generator
Convert text to URL-friendly slugs.
SEO 520 uses
Color Palette Generator
Create harmonious color palettes from a base color.
Design 540 uses
HTML Validator
Validate your HTML markup for errors.
Validation 510 uses
UUID Generator
Generate UUID v4 identifiers instantly.
Utility 558 uses
Keyword Density Checker
Analyze keyword density in your content.
SEO 497 uses
Robots.txt Generator
Generate a proper robots.txt file for your site.
SEO 488 uses
SQL Formatter
Format and beautify SQL queries.
Database 493 uses
Lorem Ipsum Generator
Generate placeholder text for designs.
Content 512 uses
Email Header Analyzer
Analyze email headers for debugging.
Email 537 uses
Redirect Checker
Check URL redirect chains and status codes.
SEO 501 uses
Text Diff Tool
Compare two texts and highlight differences.
Utility 494 uses
HTTP Headers Analyzer
Inspect HTTP response and security headers for any URL.
Security 532 uses
DNS Lookup
Check A, MX, TXT, CNAME and NS records for any domain.
Networking 535 uses
URL Encoder Decoder
Encode and decode URLs and query string parameters.
Encoding 446 uses
Open Graph Checker
Preview how URLs look when shared on social media.
SEO 511 uses
IP Lookup
Find geolocation, ISP and timezone for any IP address.
Networking 460 uses
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.
Security 501 uses
NEW
Image Converter
Bulk convert images to WebP, PNG, JPG or PDF. Browser-based, no upload.
Media 451 uses
NEW
Background Remover
Remove image backgrounds instantly with AI edge detection. Download as transparent PNG.
Media 388 uses
NEW
Image Enhancer
Sharpen, brighten, adjust contrast and apply filters to any image. Live preview.
Media 403 uses
NEW
Website Analyzer
Deep-scan any URL for SEO, performance, security and accessibility issues. Instant report.
SEO 491 uses
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