Free Developer Tools for Everyday Coding
Fast, private and easy-to-use online utilities for formatting, encoding, debugging, and everyday development.
Search by tool name, category, or keyword. Results update as you type.
- JSON FormatterFormat, beautify, validate and minify JSON directly in your browser.
- JSON ValidatorValidate JSON syntax, locate parser errors, and inspect document structure directly in your browser.
- JSON DiffCompare two JSON documents by structure and value, then inspect every changed path in your browser.
- JSON to YAML ConverterConvert JSON to YAML or YAML to formatted JSON locally in your browser.
- YAML Formatter & ValidatorFormat YAML, validate syntax, and inspect parser diagnostics locally in your browser.
- Base64 Encoder / DecoderEncode UTF-8 text to Base64 or decode Base64 back to readable text directly in your browser.
- URL Encoder / DecoderEncode URL components with percent encoding or decode encoded text directly in your browser.
- URL Parser & Query String InspectorParse URL components and inspect decoded query parameters locally in your browser.
- UUID GeneratorGenerate secure random UUID v4 values directly in your browser.
- JWT DecoderDecode JWT headers and payloads, inspect claims, and check the declared expiration window in your browser.
- Regex TesterTest JavaScript regular expressions, inspect matches, and review capture groups directly in your browser.
- Unix Timestamp ConverterConvert Unix seconds, milliseconds, local dates, and ISO 8601 values directly in your browser.
- Cron Expression GeneratorBuild standard five-field cron schedules, understand each field, and preview upcoming runs directly in your browser.
- AI Code ExplainerA structured interface for understanding unfamiliar code with AI-assisted explanations.Coming soon
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Popular Developer Tools
Quick access to practical online developer tools for common coding tasks.
JSON Formatter
Format, beautify, validate and minify JSON directly in your browser.
JSON Validator
Validate JSON syntax, locate parser errors, and inspect document structure directly in your browser.
Base64 Encoder / Decoder
Encode UTF-8 text to Base64 or decode Base64 back to readable text directly in your browser.
JWT Decoder
Decode JWT headers and payloads, inspect claims, and check the declared expiration window in your browser.
Regex Tester
Test JavaScript regular expressions, inspect matches, and review capture groups directly in your browser.
UUID Generator
Generate secure random UUID v4 values directly in your browser.
Toolbox
Developer Tools
Browse free web developer tools by category, from JSON and encoding to tokens, timestamps, and scheduled jobs.
JSON & Data
5 toolsJSON Formatter
Format, beautify, validate and minify JSON directly in your browser.
JSON Validator
Validate JSON syntax, locate parser errors, and inspect document structure directly in your browser.
JSON Diff
Compare two JSON documents by structure and value, then inspect every changed path in your browser.
JSON to YAML Converter
Convert JSON to YAML or YAML to formatted JSON locally in your browser.
YAML Formatter & Validator
Format YAML, validate syntax, and inspect parser diagnostics locally in your browser.
Encoding
3 toolsBase64 Encoder / Decoder
Encode UTF-8 text to Base64 or decode Base64 back to readable text directly in your browser.
URL Encoder / Decoder
Encode URL components with percent encoding or decode encoded text directly in your browser.
URL Parser & Query String Inspector
Parse URL components and inspect decoded query parameters locally in your browser.
Generators
1 toolSecurity & Tokens
1 toolDevelopment
3 toolsRegex Tester
Test JavaScript regular expressions, inspect matches, and review capture groups directly in your browser.
Unix Timestamp Converter
Convert Unix seconds, milliseconds, local dates, and ISO 8601 values directly in your browser.
Cron Expression Generator
Build standard five-field cron schedules, understand each field, and preview upcoming runs directly in your browser.
Coming next
AI Developer Tools
Focused assistance for understanding code, with clear handling expectations when server-side processing is required.
Built for focus
Why Orbilyra?
A practical developer toolbox should stay out of your way and make routine work easier.
Fast
Lightweight pages and focused interfaces help you get from input to result quickly.
Privacy-focused
Supported browser tools are designed to process your data locally whenever practical.
Free
Core developer utilities are free to use for everyday coding and debugging tasks.
No registration
Use the essential tools without creating an account or adding workflow friction.
Local when supported
Your code and data stay in your browser for supported local tools.
Utilities such as formatters, encoders, and generators are designed to run locally whenever practical. Tools that require server processing, including future AI features, will be identified clearly.
Learn
Developer Guides
Straightforward explanations for the formats, tokens, and schedules developers work with every day.
How to Format JSON
Learn how to pretty-print JSON, compare formatted and minified output, fix common syntax errors, and format JSON in JavaScript or Python.
Read guide →PublishedHow to Validate JSON
Learn how JSON validation works, diagnose common syntax errors, and fix malformed objects, arrays, strings, and values.
Read guide →PublishedHow to Decode a JWT
Learn how to read JWT headers, payloads, Base64URL segments, and time claims while understanding why decoding is not verification.
Read guide →PublishedCron Expression Guide
Learn the standard five-field cron format, special characters, common schedules, time zones, and implementation differences.
Read guide →Keep everyday development tasks moving.
Find the right utility for your next formatting, encoding, or debugging task.