18 free developer utilities — QR generator, hash generator, regex tester, Base64, UUID, JSON formatter, CSS gradient, and more.
Create a QR code for text/links
Generate a strong password
Get HEX/RGB color codes
MD5, SHA-1, SHA-256, SHA-384, SHA-512
Encode/decode text or files to Base64
Test regular expressions live with highlights
Convert between CSV and JSON data
Unix timestamp to/from human-readable date
Encode/decode text for URLs or HTML
Build linear/radial gradients, copy CSS
CODE128, EAN, UPC and more 1D barcodes
Generate random UUIDs, single or bulk
View, sort, and search any CSV file as a clean table in your browser.
View any XML file as a collapsible, color-coded tree.
Paste or upload HTML source and see a live rendered preview instantly.
Format messy HTML into readable code, or minify it to shrink file size.
Format messy CSS into readable code, or minify it to shrink file size.
Format messy JavaScript into readable code, or safely minify it with Terser.
ApneSoftware's 18 free online developer tools are built for web developers, software engineers, and technical users. From generating QR codes and hashes to testing regular expressions and formatting code — all tools work instantly without any server-side processing.
Format and view code: JSON Formatter & Validator, HTML Beautifier & Minifier, CSS Beautifier & Minifier, JavaScript Beautifier & Minifier, XML Viewer, HTML Live Preview, and CSV Viewer.
Encode and decode data: Base64 Encoder/Decoder, URL & HTML Entity Encoder, CSV ↔ JSON Converter, and Unix Timestamp Converter.
Generate useful values: QR Code Generator, Barcode Generator (CODE128/EAN/UPC), UUID Generator, Password Generator, Hash Generator (MD5/SHA-1/SHA-256/SHA-512), and CSS Gradient Generator.
Test and debug: Regex Tester with live match highlighting, Color Picker with HEX/RGB/HSL codes.
Yes. The JSON Formatter is completely free. It validates, beautifies, and minifies JSON data entirely in your browser.
The Hash Generator supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512 algorithms. You can hash text or upload files.
Yes. The QR Code Generator is free. Generate QR codes for URLs, text, emails, phone numbers, and more. Download as PNG.
Yes. The Regex Tester supports all JavaScript regex flags: global (g), case-insensitive (i), multiline (m), dotAll (s), and unicode (u).
Yes. The Base64 Encoder accepts both text input and file uploads. Encode any file to a Base64 string or decode Base64 back to its original file.
The UUID Generator creates cryptographically secure UUID v4 values. You can generate one at a time or in bulk up to 100 UUIDs.
The Barcode Generator supports CODE128, EAN-13, EAN-8, UPC-A, ITF-14, and MSI formats. Download as PNG or SVG.
Yes. The CSS Gradient Generator is free. Build linear and radial gradients visually and copy the ready-to-use CSS code.