Free Online Developer Tools
QR code generator, code-to-image converter, barcode generator, and a free REST API — all in one place. No login, no limits.
All Free Tools
QR Code Generator
Generate QR codes for 9 types: URL, WiFi, WhatsApp, vCard, Email, SMS, Phone, Text, and Image. Customize colors, download PNG or SVG — free, no account needed.
Open QR GeneratorCode to Image
Convert any code snippet into a beautiful, shareable PNG image. 20+ languages, 8 themes, gradient backgrounds, line numbers, and 3× resolution download. No watermark.
Open Code to ImageFree QR & Barcode REST API
Generate QR codes and barcodes programmatically with a single GET request. JSON + base64 PNG response. 60 requests/min on the free tier. No API key needed for basic use.
View API DocsBarcode Generator
Generate standard barcodes — EAN-13, EAN-8, Code 128, Code 39, UPC-A, and more. Download as PNG or SVG. Used for product labels, retail, and inventory management.
Open Barcode GeneratorUtility Developer Tools
JSON Formatter
Paste any minified or messy JSON and get clean, indented, syntax-highlighted output instantly. Includes validate-only mode and minify. 100% browser-side.
Open JSON FormatterXML Formatter
Format and validate XML online — paste minified XML and get nicely indented, readable output. Catches syntax errors instantly. Works in-browser.
Open XML FormatterBase64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 strings back to text. Swap mode, auto-convert on type. All browser-side — no data sent to any server.
Open Base64 ToolJWT Decoder
Decode and inspect JWT tokens — view the header, payload and signature in formatted JSON. 100% browser-side. Note: signature verification requires your server.
Open JWT DecoderURL Encoder / Decoder
Encode special characters in URLs to percent-encoded format or decode them back. Supports full URL encode, component encode, and decode modes.
Open URL EncoderPassword Generator
Generate strong, random passwords using cryptographic randomness. Set length up to 128, choose character sets, see strength meter and entropy. Copy instantly.
Open Password GeneratorWhy Developers Choose CodePrints
Instant Results
No processing time — QR codes and code images generate live as you type.
No Login Required
Every tool is free to use immediately. No email, no account, no subscription.
Works on Any Device
Fully responsive — use on desktop, tablet, or phone with the same experience.
Privacy First
Code snippets are processed in your browser — nothing is sent to our servers.
PNG & SVG Download
Download as raster PNG for web or scalable SVG for print. No quality loss.
Unlimited Use
No daily limits, no usage caps. Generate as many QR codes and images as you need.
QR Code Type Guides
Start Using Free Developer Tools
No account. No limits. Just tools that work.