Free Online Developer Tools & Utilities
Use free browser-based developer tools for JSON, regex, JWTs, UUIDs, hashes, Base64, QR codes, text diffs, Markdown, colors, and more.
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Use practical browser-based utilities for formatting data, testing patterns, generating identifiers, inspecting tokens, and preparing assets. The SavvyToolz developer collection includes JSON formatting and validation, regular-expression testing, UUID and password generation, JWT inspection, hashing, Base64 conversion, text comparison, Markdown editing, QR codes, barcodes, Unix timestamps, and public IP lookup. Design and file helpers cover color values, image compression, background removal, placeholder text, and PDF page export. Tool pages explain supported formats and important limitations, and many sensitive transformations run locally in your browser. There is no account gate, so you can move from a debugging task to a usable result quickly.
- JSON Formatter, Validator & Tree Viewer
- Regex Tester
- Secure Password Generator
- UUID v4 Generator
- JWT Encoder & Decoder
- Hash Generator
- Base64 Encoder & Decoder
- Free QR Code Generator for URL, Text & Wi-Fi
- Free Barcode Generator
- Text Diff Checker
- Online Markdown Editor with Live Preview
- Case Converter
- Lorem Ipsum Generator
- Unix Timestamp Converter
- What Is My IP Address? Free IP Lookup
- Online Color Picker
- Image Compressor
- AI Background Remover
- PDF to Image Converter
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