Developer tools hub
Browser-based tools for JSON, HTTP, security tokens, regex, and everyday dev workflows. Nothing to install; your data stays on your device.
JSON & data
Format, validate, diff, and convert structured data.
- JSON formatter Validate, format, and minify JSON with clear error messages — all client-side.
- JSON Diff Tool Compare two JSON documents and highlight changes.
- JSON Schema Validator Validate JSON documents against schema definitions.
- CSV to JSON Converter Convert CSV rows into JSON arrays quickly.
- XML Formatter Format and validate XML text with indentation.
- SQL Formatter Beautify SQL queries for readability and review.
APIs & HTTP
Build requests, test webhooks, and check endpoints.
Security & auth
Passwords, tokens, HMAC, and hashing utilities.
- Password generator Generate strong random passwords with length and character options — client-side only.
- Passphrase Generator Create memorable multi-word passphrases.
- Password Strength Checker Evaluate password strength with instant feedback.
- JWT Decoder Decode JWT header and payload safely in your browser.
- HMAC Generator Generate HMAC signatures with popular hashing algorithms.
- Text to MD5 Hash text to an MD5 hex digest instantly in your browser — live as you type.
Code & markup
Beautify, minify, preview, and test patterns.
Encoding & identifiers
Base64, UUIDs, epochs, and text encodings.
- Text encode & decode Encode or decode Base64, URL components, and hex in your browser.
- UUID generator Generate random UUID v4 identifiers for APIs, databases, and testing.
- UUID v6/v7 Generator Generate sortable UUID versions for modern systems.
- Epoch time converter Convert Unix timestamps to human-readable dates and back, in your local time zone.
- Base64 Image Encoder/Decoder Convert image files to and from Base64 strings.
Developer utilities in the browser
This hub collects everyday dev tools: JSON formatters and validators, HTTP and webhook testers, encoders, UUID generators, regex testers, and code beautifiers. They are built for quick checks during API work, debugging, and content pipelines.
Nothing installs on your machine for typical use — paste, transform, copy. That keeps iteration fast when you only need one transformation or a sanity check before deployment.
Privacy and safe use
Client-side tools process data in your tab. Avoid pasting production secrets, live API keys, or personal data you would not put in a shared snippet. For JWT decode and HMAC tools, treat output as sensitive if the input was sensitive.
FAQ
- Do developer tools send my code to a server?
- Most tools on this hub run entirely in your browser. Tools that call external URLs (for example status checkers) only send what you explicitly request — read each tool page for details.
- Can I use output in commercial projects?
- Generated strings (hashes, formatted JSON, encoded text) are generally yours to use. Our pages provide general information only; ensure compliance with your employer and any third-party licenses.
- Which JSON tool should I use?
- Use the JSON formatter to pretty-print or minify. Use JSON Diff to compare two documents. Use JSON Schema Validator when you need structure checks against a schema file.
- Are these replacements for Postman or an IDE?
- They complement full platforms. The API request builder and webhook tester are handy for light checks; complex collections and team workflows still belong in dedicated API clients.