8 focused utilities
Developer Tools
Local utilities for inspecting, converting, comparing, and generating everyday development data.
Developer work often involves small transformations that do not justify installing another application or sending project data to an unknown service. This collection covers common JSON, token, timestamp, encoding, pattern, identifier, and hashing tasks in focused browser interfaces.
The tools are designed for quick inspection and debugging. Inputs are processed on the device whenever the browser provides the required capability. Security-sensitive results still need professional validation before they are used in production systems.
JSON Fix
Repair malformed JSON and turn it into clean, readable data.
JSON Diff
Compare two JSON documents and inspect added, removed, and changed values.
Timestamp Converter
Convert Unix timestamps and local dates while keeping an eye on the current time.
JWT Decoder
Decode JWT headers and payloads locally without sending tokens to a server.
Base64 Encoder
Encode or decode UTF-8 text with standard and URL-safe Base64.
Regex Tester
Test regular expressions, inspect capture groups, and highlight every match.
UUID Generator
Generate secure UUID v4 values in batches and validate existing UUIDs.
Hash Generator
Calculate SHA-256, SHA-384, or SHA-512 hashes for text and local files.