Free Online Text &
Developer Tools
Instantly convert, format, and generate text with 20+ fast, privacy-friendly tools. No sign-up required — everything runs in your browser.
- Instant results — no loading, no waiting
- 100% client-side — your data never leaves your browser
- 20+ tools for developers, writers, and everyday use
Browse Free Online Tools
Find the right tool for formatting text, debugging code, or generating content.
Browse All Tools
Case Converter
Convert text to uppercase, lowercase, title case, and more
Slug Generator
Create URL-friendly slugs from any text
Word Counter
Count words, characters, sentences, and paragraphs
Character Counter
Count characters, words, and sentences
Remove Duplicate Lines
Remove duplicate lines from text
Remove Line Breaks
Remove or replace line breaks in text
Sort Text Alphabetically
Sort lines of text A–Z or Z–A
Password Generator
Generate secure random passwords
Lorem Ipsum Generator
Generate placeholder text
JSON Formatter
Format and validate JSON with syntax highlighting
Base64 Encoder
Encode and decode Base64 strings
URL Encoder
Encode and decode URL strings
UUID Generator
Generate UUIDs
Timestamp Converter
Convert timestamps to dates and back
JWT Decoder
Decode and inspect JWT header and payload
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes
Text Diff Checker
Compare two texts and see differences
Regex Tester
Test regular expressions against text
Markdown Preview
Preview markdown as HTML live
HTTP Status Lookup
Look up HTTP status codes and their meanings
Image Converter
Convert images between PNG, JPEG, and WebP — free, private, browser-only.
Developer Tools
Tools for debugging, formatting, and working with data formats like JSON, JWT, and regex.
Text Tools
Convert, clean, and analyze text with tools like case converter, word counter, and duplicate remover.
Generators
Generate passwords, UUIDs, and placeholder text instantly.
What is WhatAConverter?
WhatAConverter is a collection of free online tools designed to help you work with text, code, and data quickly and efficiently. Whether you need to format JSON, test regular expressions, or convert text between different cases, these tools run instantly in your browser.
Unlike many online utilities, WhatAConverter is built for speed and privacy. No data is sent to a server — everything happens locally, making it safe for sensitive data and developer workflows.