33 Free Utilities
Developer Utilities
Fast, private developer utilities for formatting syntax, decoding tokens, testing regex patterns, calculating cryptographic hashes, and converting data formats with zero installation.
About Developer Utilities
Engineers and developers frequently need to inspect minified JSON payloads, decode JWT claims, format indented YAML, test regular expressions, or calculate SHA-256 hashes. ConvertCasePro Developer Utilities give you lightweight, browser-based inspection and formatting tools that work instantly on any computer without transmitting secrets, tokens, or private code to third parties.
Available Tools
Select any utility below to launch it instantly in your browser.
- A1Z26 Cipher DecoderSpell a word as its alphabet positions, or decode a list of numbers into text.Open Tool →
- Base64 Encode and DecodePaste text to encode it, or paste Base64 to read what it holds.Open Tool →
- Binary Code TranslatorConvert words to ones and zeros and back again.Open Tool →
- Caesar Cipher ToolShift every letter by a fixed number of places, or try every shift to find the hidden message.Open Tool →
- CSS FormatterPaste CSS and get tidy, consistently indented code, or a compact minified version.Open Tool →
- CSV to JSON ConverterPaste CSV and get an array of JSON objects, or an array of arrays if there is no header.Open Tool →
- dot.case ConverterTurn any phrase or identifier into lowercase words separated by dots.Open Tool →
- GraphQL FormatterPaste a GraphQL document and get it laid out cleanly.Open Tool →
- Hex to Text ConverterDecode a hex dump to text, or turn text into hex bytes.Open Tool →
- HTML Formatter, Minifier and BeautifierClean up markup, or squeeze it down for production.Open Tool →
- HTML to Markdown ConverterPaste HTML and get Markdown you can drop into a README, a wiki or a static site.Open Tool →
- JavaScript FormatterMake minified or messy JavaScript readable.Open Tool →
- JSON Formatter and MinifierPaste JSON to validate it and print it neatly, or compress it to a single line.Open Tool →
- JSON Stringify TextPaste text, get a string literal that is safe to place inside JSON.Open Tool →
- JSON to YAML ConverterSwitch configuration between JSON and YAML in either direction.Open Tool →
- JSON UnstringifierPaste a string full of backslashes and see the original content.Open Tool →
- Markdown FormatterTidy a Markdown document so that lists, tables and spacing are consistent.Open Tool →
- Markdown Table GeneratorPaste cells from Excel, Google Sheets or a CSV and get a ready to use Markdown table.Open Tool →
- MD5 Hash GeneratorType or paste text to get its MD5 checksum.Open Tool →
- Morse Code TranslatorType a message to see its dots and dashes, or paste Morse to read it.Open Tool →
- PDF to Markdown ConverterDrop a PDF and get structured Markdown back.Open Tool →
- QR Code GeneratorChoose what the code should do, adjust the style and download it.Open Tool →
- Regex Tester ToolWrite a pattern, paste a test string and see exactly what matches.Open Tool →
- ROT13 Encoder and DecoderApply ROT13 to hide spoilers, or use ROT47 to scramble every printable character.Open Tool →
- SCSS FormatterClean up SCSS so that nesting and declarations read clearly.Open Tool →
- Slugify URL GeneratorTurn any headline into a tidy, lowercase, hyphenated slug.Open Tool →
- TypeScript FormatterPaste TypeScript and get it formatted with consistent style.Open Tool →
- URL Encode and DecodeMake text safe for a URL, or read an encoded one.Open Tool →
- UTF-8 Encoder and DecoderSee exactly which bytes a string occupies.Open Tool →
- UTM GeneratorFill in your campaign details and copy the tagged link.Open Tool →
- Word to Markdown ConverterDrop a .docx file and get Markdown ready for GitHub or your docs site.Open Tool →
- XML FormatterPaste XML to check it and lay it out with clear indentation.Open Tool →
- YAML FormatterCheck your YAML parses, and print it with consistent indentation.Open Tool →
Frequently Asked Questions
Is it safe to paste API tokens or private JSON into these developer utilities?
Yes. Every tool in this suite runs strictly inside your local browser context. Your JSON tokens, API bodies, and source code are never uploaded or logged over the network.
Does the JSON Formatter validate syntax errors?
Yes. The JSON Formatter pinpoints parsing syntax errors with exact line and column numbers so you can quickly diagnose malformed JSON strings.
Which programming languages and data formats have formatters?
We provide dedicated formatters and validators for JSON, YAML, HTML, CSS, SCSS, JavaScript, TypeScript, Markdown, and GraphQL.
Does the Regex Tester support flags like global and case-insensitive?
Yes. You can toggle global (g), case-insensitive (i), multiline (m), and dotAll (s) flags to test patterns against sample strings in real time.
Explore Other Tool Categories
Case Converters (12)Convert text to uppercase, lowercase, title case, camelCase, snake_case, and more.Writing and Cleanup (29)Clean, count, sort, search and reshape plain text.Unicode Text Styles (30)Unicode text styles you can paste into any app or profile.Random and Secure Generators (8)Numbers, passwords, IDs and picks from a secure random source.Handy Extras (14)Extra helpers for editors, analysts and developers.