About CoderTools.io
Lightweight browser-based utilities for developers, testers, analysts, and automation workflows.
CoderTools.io is designed to be fast, simple, and privacy-conscious, with common tasks such as formatting JSON, converting CSV and JSON, working with YAML or XML, encoding Base64, decoding JWTs, and generating UUIDs.
Most tools run directly in your browser so formatting and conversion tasks can be completed without creating an account or sending input to a CoderTools.io backend for processing.
Supported workflows
- JSON formatting, validation, and conversion
- CSV ↔ JSON conversion
- YAML and XML to JSON
- Base64 encode and decode
- UUID generation and JWT inspection
Design principles
- Fast - static pages with client-side processing where possible
- Simple - focused tools without unnecessary steps
- Private - no signup; see our privacy policy for how data is handled
- Lightweight - no heavy dependencies or install required