My Tool Studio
35 tools · For developerseloper

Developer Tools

Everything a developer reaches for daily, JSON / YAML / XML / CSV conversion, encoders and decoders, hash and UUID generators, regex testing, code beautifiers and minifiers, and reference lookups.

JSON Formatter

Beautify, validate and explore JSON

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JSON Validator

Find errors in your JSON instantly

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JSON Minifier

Strip whitespace from JSON

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JSON to CSV

Convert JSON arrays into CSV

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CSV to JSON

Convert CSV into JSON

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JSON to XML

Convert JSON to XML

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XML to JSON

Convert XML to JSON

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JSON to YAML

Convert JSON to YAML

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YAML to JSON

Convert YAML to JSON

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JSON to TypeScript

Generate TypeScript types from JSON

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JSON to TOON Converter

Convert JSON to TOON and cut LLM tokens by 30-60%

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Base64 Encoder / Decoder

Encode or decode Base64 strings

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URL Encoder / Decoder

Encode or decode URL components

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HTML Entity Encoder

Escape HTML special characters

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HTML Minifier

Shrink HTML for production

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HTML Beautifier

Format HTML with proper indentation

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CSS Minifier

Shrink CSS for production

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CSS Beautifier

Format CSS with proper indentation

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JS Minifier

Shrink JavaScript for production

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JS Beautifier

Format JavaScript code

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SQL Formatter

Beautify SQL queries

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JWT Decoder

Decode and inspect JSON Web Tokens

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UUID Generator

Generate UUIDs (v4)

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Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512

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Regex Tester

Test regular expressions live

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Cron Expression Parser

Decode cron schedules in plain English

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Unix Timestamp Converter

Convert between Unix time and ISO dates

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Markdown to HTML

Convert Markdown to HTML

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HTML to Markdown

Convert HTML to Markdown

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cURL to Code

Convert cURL commands to fetch / axios / Python

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HTTP Status Codes

Lookup HTTP status code meanings

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ASCII Table

Lookup ASCII character codes

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MIME Type Lookup

Look up MIME types by extension

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DNS Record Types

Reference for DNS record types

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About Developer Tools

The developer category on MyToolStudio brings together 30-plus everyday utilities you'd otherwise keep in scattered browser tabs. Reach for the JSON Formatter to tidy an API response, the Regex Tester to build a pattern with live matches, or a code formatter online when your JSON, HTML, CSS, or JavaScript comes back minified and unreadable. You'll also find converters like CSV to JSON, encoders like Base64 and the JWT Decoder, and quick references for HTTP status codes. These online developer tools run in your browser, so nothing you paste leaves your machine.

Common questions

Is there a free code formatter online in this developer category?

Yes. Every formatter here, the JSON Formatter, HTML Beautifier, CSS Beautifier, and JS Beautifier, is a free code formatter online with no sign up and no daily limit. Paste your code, pick your indent, and copy the clean result. The SQL Formatter handles queries the same way.

Which developer tools help with JSON and data conversion?

Start with the JSON Formatter and JSON Validator for cleanup and error checking, then use JSON to CSV, CSV to JSON, JSON to YAML, or XML to JSON when you need a different shape. The JSON to TypeScript tool even builds interfaces from a sample. All of it runs client-side.

What can I do with the encoding and reference developer tools?

Use the Base64 Encoder / Decoder and URL Encoder / Decoder for quick transforms, the JWT Decoder to inspect a token's payload, and the Hash Generator for MD5 or SHA-256. The HTTP Status Codes, MIME Type Lookup, and ASCII Table pages are there when you just need to look something up fast.