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Dev tools · June 3, 2026

ByteJSON

Free developer toolkit. JSON, encoding, regex, calculators.

ByteJSON launched on June 3, 2026 with 3 votes, #6,658 of 22,647 launches that month and more than 50% of that year's launches.

What it does

ByteJSON is a free collection of online tools that run entirely in your browser. Your data never leaves your device. 👩‍💻 For Developers: • JSON Formatter, Validator, Diff, Repair • Base64/URL Encoder, Regex Tester & Explainer • UUID Generator (v4 + new v7 standard) • Case Converter, Slug Generator • Hash, JWT Debugger, Cron Generator 🏠 For Everyone: • Mortgage Calculator with amortization • Tax Calculator (2024 brackets) • Loan & Investment calculators

Browser-native developer tools for JSON validation, SQL checks, Firebase configuration, and schema work. Private by default and built for real debugging.

Focused tools for the moments that slow a build down: invalid JSON, SQL that will not parse, Firebase configuration, and schema drift. Your input stays in the browser. Each public tool maps to a practical debugging job. Open one, paste safely, and get an answer. Validate SQL with dialect-aware checks and line-numbered errors. Parse and fix Firebase Android config files before you build. Check open ports from your browser for local troubleshooting. Tools stay intentionally narrow: they should solve a real data, SQL, or configuration task without turning a private debugging session into an account signup or file upload. Runnable technical context for the workflows behind the tools. Set safe…from bytejson.com

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