H Helstify Tools
Code workbench

Developer Tools

Browser-based utilities for JSON, encoding, hashes, and quick debugging.

Live workbench

Run developer tools in your browser.

Pick a tool, paste content or choose a file, and get an instant result. These helpers run client-side for speed and privacy.

JSON Formatter 
Ready.

Developer Tools

JSON Formatter

Beautify, minify, validate, and inspect JSON safely.

Developer Tools

JWT Decoder

Read token headers and payloads without sending them to an account.

Developer Tools

Base64 Tools

Encode and decode strings, files, and data URLs.

Developer Tools

Hash Generator

Create SHA, MD5, and checksum values for text or files.

Developer Tools

Regex Tester

Test patterns against examples with match highlighting.

Developer Tools

Timestamp Converter

Convert Unix timestamps to local and UTC date formats.