CoderTools.io

Free Online Developer Tools for Everyday Workflows

CodeTools.io gives you fast, privacy-first utilities to convert, format, and generate data directly in your browser. No accounts, no servers, no data stored – just lightweight tools built for developers, analysts, QA engineers, and automation scripts.

CSV → JSON

Upload or paste CSV and instantly convert it to clean JSON for APIs, configs, or test data.

JSON → CSV

Flatten JSON into CSV for Excel, spreadsheets, or reporting pipelines.

JSON Beautify & Validate

Pretty-print and validate JSON for debugging, logs, and API responses.

XML → JSON

Turn legacy XML payloads into JSON for modern services.

YAML → JSON

Convert YAML config files into JSON for tools and automation.

Base64 Encode / Decode

ncode or decode Base64 for tokens, binary data, and integrations.

UUID Generator

Generate secure UUIDs for IDs, test data, and distributed systems.