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 555 uses
CSS Minifier
Compress CSS to reduce file size.
Optimization 540 uses
Base64 Encoder
Encode and decode Base64 strings.
Encoding 529 uses
Word Counter
Count words, characters and analyse keyword density.
Content 472 uses
NEW
Markdown Editor
Write and preview Markdown in real-time. Convert to HTML instantly.
Content 366 uses
NEW
Regex Tester
Test and debug regular expressions in real-time with match highlighting.
Developer 416 uses
NEW
JWT Decoder
Decode and inspect JSON Web Tokens. Runs 100% in your browser.
Security 428 uses
NEW
Color Contrast Checker
Check WCAG AA/AAA accessibility contrast ratios for any colors.
Design 432 uses
NEW
Cron Expression Builder
Build and explain cron expressions visually with next run times.
Developer 428 uses
NEW
Timestamp Converter
Convert Unix timestamps to human dates and back. Live clock.
Developer 418 uses
Password Generator
Generate secure, random passwords with custom rules.
Security 550 uses
Meta Tag Generator
Create perfect SEO meta tags for any page.
SEO 564 uses
JSON Formatter
Format, validate and minify JSON data.
Formatting 567 uses
JS Minifier
Minify JavaScript for production.
Optimization 528 uses
Image Compressor
Compress images without visible quality loss.
Media 547 uses
Slug Generator
Convert text to URL-friendly slugs.
SEO 522 uses
Color Palette Generator
Create harmonious color palettes from a base color.
Design 542 uses
HTML Validator
Validate your HTML markup for errors.
Validation 511 uses
UUID Generator
Generate UUID v4 identifiers instantly.
Utility 560 uses
Keyword Density Checker
Analyze keyword density in your content.
SEO 498 uses
Robots.txt Generator
Generate a proper robots.txt file for your site.
SEO 489 uses
SQL Formatter
Format and beautify SQL queries.
Database 495 uses
Lorem Ipsum Generator
Generate placeholder text for designs.
Content 513 uses
Email Header Analyzer
Analyze email headers for debugging.
Email 538 uses
Redirect Checker
Check URL redirect chains and status codes.
SEO 502 uses
Text Diff Tool
Compare two texts and highlight differences.
Utility 496 uses
HTTP Headers Analyzer
Inspect HTTP response and security headers for any URL.
Security 535 uses
DNS Lookup
Check A, MX, TXT, CNAME and NS records for any domain.
Networking 537 uses
URL Encoder Decoder
Encode and decode URLs and query string parameters.
Encoding 447 uses
Open Graph Checker
Preview how URLs look when shared on social media.
SEO 513 uses
IP Lookup
Find geolocation, ISP and timezone for any IP address.
Networking 461 uses
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.
Security 503 uses
NEW
Image Converter
Bulk convert images to WebP, PNG, JPG or PDF. Browser-based, no upload.
Media 452 uses
NEW
Background Remover
Remove image backgrounds instantly with AI edge detection. Download as transparent PNG.
Media 389 uses
NEW
Image Enhancer
Sharpen, brighten, adjust contrast and apply filters to any image. Live preview.
Media 404 uses
NEW
Website Analyzer
Deep-scan any URL for SEO, performance, security and accessibility issues. Instant report.
SEO 492 uses
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