Choose the right tool
Start with the tool whose input field best matches your technical input. This avoids unnecessary options and gets you to a reliable result faster.
Overview
Development
25+ free developer tools: JSON formatter, Base64, JWT decoder, regex tester, UUID generator & more. Runs locally — no upload.
Tools
Hex / Decimal / Binary / Octal Converter
Convert numbers exactly between hexadecimal, decimal, binary, and octal.
Cron Expression Descriptor
Explain, validate, and preview upcoming run times for cron expressions locally.
RegEx Tester
Test JavaScript regular expressions locally, inspect matches and capture groups, and preview replacements.
URL Decoder
Decode percent-encoded URL components, paths, query strings, and form data locally.
URL Encoder
Percent-encode text, paths, query values, and form data locally in the browser.
JWT Decoder
Decode JWTs locally, inspect claims, and optionally verify HMAC signatures in the browser.
UUID / GUID Generator
Generate UUIDs and GUIDs locally in the browser, export batches, and use v4 or v7.
JSON Formatter
Validate, format, minify, analyze, and inspect JSON as a tree locally.
JSONPath Query Evaluator
Run RFC 9535 JSONPath queries locally against JSON and show normalized paths.
JMESPath Evaluator
Run JMESPath Core expressions locally against JSON and export the JSON result.
XPath Tester / Playground
Test XPath 1.0 in the browser and XPath 3.1 locally against XML or HTML documents.
Base64 Decoder
Decode Base64, Base64URL, MIME Base64, or data URLs to bytes directly in the browser.
Base64 Encoder
Encode text or local files to Base64, Base64URL, MIME Base64, or data URLs directly in the browser.
JSON to XML
Convert JSON files or pasted JSON text to XML directly in the browser.
XML to JSON
Convert XML files or pasted XML text to JSON directly in the browser.
JSON to YAML
Convert JSON files or pasted JSON text to YAML directly in the browser.
YAML to JSON
Convert YAML files or pasted YAML text to JSON directly in the browser.
bcrypt / MD5 / SHA-256 Generator
Generate and verify bcrypt password hashes and calculate MD5 and SHA-256 digests locally.
CSV to Markdown Table
Convert CSV, TSV, and delimiter-separated data to GitHub-Flavored Markdown tables locally in the browser.
JSON to TOML
Convert strict JSON to readable TOML locally in the browser.
JSON to TypeScript Interface
Infer TypeScript interfaces and type aliases from JSON sample data locally in the browser.
SQL Formatter
Format and beautify SQL scripts locally in the browser.
JSON to SQL INSERT
Convert JSON objects and object lists to SQL INSERT statements directly in the browser.
CSV to JSON
Convert CSV, TSV files, or pasted table data to JSON directly in the browser.
JSON to CSV
Convert JSON files or pasted JSON text to CSV directly in the browser.
Development: overview and choosing the right tool
The development tools cover recurring work with JSON, CSV, YAML, XML, SQL, Base64, JWT, UUIDs, regex, and URL encoding. They are built for short debugging sessions, code reviews, API checks, and data cleanup where a developer needs a correctly formatted result quickly.
Many tools run directly in the browser, which makes them practical for sensitive snippets, tokens, and configuration data. Instead of opening a full project, you can inspect, convert, validate, or clean data without interrupting your workflow.
How to choose the right tool
Check the result
For important data, compare the result with a small example or known reference value, especially when rounding, formatting, or file size matters.
Consider privacy
For sensitive content, browser-based tools are especially useful because inputs or files are usually processed locally and do not need to be prepared for an account.
Common tasks
Check API data
Format JSON, test paths, create CSV or XML, and validate response data before using it in code or documentation.
Encoding and tokens
Base64, URL encoding, and JWT decoding make technical values readable and help identify common integration mistakes faster.
Convert structures
Converters between JSON, YAML, TOML, XML, SQL, and TypeScript reduce manual cleanup during prototyping and migrations.
Frequently asked questions
Are the developer tools free?
Yes. The tools on Xoricon can be used without signing in and are designed for quick tasks in the browser.
Are my inputs uploaded?
Most tools in this category run locally in the browser. If a tool requires a different processing model, the individual tool page should make that visible.
Which tool should I open first?
Choose the tool based on your source material and the result you need. Each tool card states the main purpose and links directly to the matching input interface.