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RoughTools.com
free online toolsNo signup required
💻19 Free Developer Tools — All Browser-Side

Developer Tools. Fast. Free. No Limits.

JSON formatter, Base64 encoder, regex tester, JWT decoder, UUID generator, diff checker — all run in your browser. No API key, no account, no data sent to any server.

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Choose what you need to do

Instant Results🔒Browser-Side Only🆓Always Free🚫No Login Required🌐Works Offline
🎨

Code Formatters

Beautify, minify, and validate code in any language

7 tools
🔒

Encoders & Decoders

Base64, URL encoding, HTML entities, and JWT tokens

4 tools
🔧

Generators & Testers

Generate UUIDs, hashes, and test regular expressions

3 tools
⚙️

Dev Utilities

Diff checker, timestamps, cron parser, chmod, and color tools

5 tools

Free Developer Tools Online

Every tool runs 100% in your browser — no data is ever sent to a server. JSON, Base64, regex, UUID, hashes, and more. Bookmark them, use them offline, share them with your team.

No sign-up, no rate limits, no paywalls. Just the tool and your code.

Why developers choose Roughtools?

  • 100% browser-based — zero data sent to any server
  • No account, no API key, no rate limits
  • Works offline after first load
  • Supports modern formats: ES6+, JSX, TypeScript, YAML
  • Syntax-highlighted output for every formatter
  • Free forever — no freemium tier