OptiPix for Developers
Essential browser-based developer utilities: regex tester, JSON formatter, hash generator, text diff, and more - all offline-ready.
OptiPix for Developers
Developers need fast, reliable utilities that don't require installing packages or trusting third-party servers with sensitive data.
Why OptiPix?
All developer tools run 100% in your browser. Paste API keys, tokens, or proprietary code into the JSON formatter or regex tester without worrying about data leaks - nothing leaves your device.
Key Tools
#### Regex Tester
Write, test, and debug regular expressions with real-time matching, capture groups, and common pattern library. Supports JavaScript, Python, and Go flavors.
#### JSON Formatter
Pretty-print, validate, and minify JSON. Handles large payloads that online formatters reject. Includes tree view navigation.
#### Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of text or files. Verify checksums without command-line tools.
#### Text Diff
Compare two text blocks side-by-side with highlighted additions, deletions, and modifications. Perfect for reviewing config changes.
#### CSV/JSON Converter
Convert between CSV and JSON formats instantly. Handles headers, nested objects, and large datasets.
Workflow Integration
Bookmark your most-used tools for one-click access. Works offline - ideal for air-gapped environments or spotty Wi-Fi.
Try Regex Tester free - your files never leave your device
Built for this exact workflow - 100% private, no uploads.
Open Regex Tester