Free 70+ Tools QR, Barcode, Calculator, Image & PDF
70+ free tools · QR & barcode, 28 calculators, 18 image tools, PDF & generators — 100% browser-based, no sign-up
Auto-detects 40+ data types instantly
Download Free
Customize & more options🌍 40+ auto-detect types · Paste any data · Works globally
Extension, Web App, Plugin, API & Tool Updates
Latest improvements — free Chrome extension, installable PWA, WordPress plugin, public Developer API, and new PDF & transparent-PNG support in our QR tools. All on-device, zero tracking, zero harm.
Chrome Extension
v1.0 · GPLGenerate, scan & customize QR codes from any web page. 6 tabs — Page QR, Text QR, Scan, WiFi, vCard & Batch. Runs 100% offline, no Web Store account required.
Install as Web App
Free · No app storeAdd QREndlessPro to your home screen. Works offline after install, push notifications for tool updates, instant launch from app icon — no app store needed.
New in QR Tools
UpdatedQR Expiry Checker now decodes PDF files (renders first page), supports transparent PNG QR codes, and reads 6 image formats + SVG + PDF. Improved race-condition safety for async decoding.
WordPress Plugin
v1.0 · GPL v26 free QR tools as Gutenberg blocks + shortcodes. Auto-creates SEO pages, WP Cron automation for new posts & WooCommerce products. 100% browser-based, zero server processing.
Developer API
v1.0 · FreeGenerate QR codes programmatically via HTTP. PNG, SVG, or JSON response. No API key, CORS-enabled, 60 req/min. Server-side via qrcode npm. Perfect for websites & apps.
Everything You Need to Create QR Codes
Professional QR code tools, completely free. Click any tool to get started — no sign-up, no watermarks.
Generate QR Code
Create any QR code for free — URL, WiFi, UPI, vCard, email, SMS & 1,421+ more types. No watermark.
Customize QR Design
Add logo, change colors, pick dot styles, add frames & gradients. Branded QR codes for business.
Bulk QR Generator
Create up to 5,000 QR codes at once from CSV data. Sequential numbering, split-ZIP downloads.
QR Code Scanner
Scan QR codes & barcodes with camera or image upload. URL validation, PII masking & bulk scan.
QR Code Decoder
Decode QR codes from images — extract data, analyze encoding, export to 9 formats including JSON & SVG.
QR Code Enhancer
Fix blurry QR codes, upscale to 4K, force B&W contrast, repair quiet zones. Restore scannability.
QR Expiry Checker
Check if your QR code is static (never expires) or dynamic (may expire). Upload any QR image, instant results.
Choose Your QR Code Category
QR codes for payments, packaging, social media, business cards, WiFi, restaurants, healthcare, and more.
Tap a category to preview, tap again to openHover a category to preview its QR code type
100+ Barcode Types — Retail, Shipping, 2D & More
Generate EAN-13, UPC-A, Code 128, GS1-128, Data Matrix, PDF417, Aztec, and 90+ more barcode types. All generated in your browser — no server, no signup, no watermark. Download as PNG, SVG, or GIF.
- 100+ barcode symbologies
- PNG, SVG, GIF export
- GS1 composite barcodes
- 100% browser-based
28 Free Online Calculators
Basic, scientific, mortgage, BMI, loan, compound interest, tip, GPA, age, unit converter, and 18 more. Pure JavaScript math — no eval, no server, instant results with full keyboard support.
- 28 calculator types
- Pure JS math (no eval)
- Keyboard support
- Live results
18 Image Tools — Resize, Crop, Convert & More
Resize by pixels/cm/mm, crop with 12 platform presets, rotate, flip, compress, convert between 6 formats, remove EXIF, upscale, add watermark, and more. All processing happens locally — your images never leave your device.
- 18 image tools
- 6 output formats (PNG, JPG, WebP, PDF, BMP)
- 12 platform presets
- EXIF removal & viewing
22 PDF Tools — Merge, Split, Compress & More
Merge multiple PDFs, split by pages, compress file size, rotate, crop, watermark, password-protect, unlock, add page numbers, redact text, extract pages, and 11 more tools. Powered by pdf-lib — 100% browser-based, no upload, no signup.
- 22 PDF tools
- pdf-lib powered
- No upload — all local
- Password protect & unlock
15+ Free Online Generators
Generate strong passwords with Web Crypto API, UUID v4/v1/v7, lorem ipsum, color palettes, CSS gradients, box shadows, hash values (MD5/SHA-256), Base64, URL-encoded strings, slugs, dummy data, robots.txt, meta tags, and more.
- 15+ generator tools
- Web Crypto API for passwords
- UUID v4/v1/v7
- No signup required
Most Used QR Code Types
The most popular QR code types people search for — URL, WiFi, vCard, UPI, email, and more. Click any to create instantly.
All QR Code Categories
Browse all 38 QR code categories — from payments and WiFi to healthcare and smart cities.
Your Data Stays Yours
Every QR code is generated entirely in your browser. No servers, no tracking, no sign-up — just private, instant results.
Generated In-Browser
QR codes are created on your device using WebAssembly. Your data never touches a server.
No Servers to Hack
There is no backend storing your inputs. Nothing to breach, nothing to leak, nothing to sell.
Works Offline
Installed as a PWA, the full toolkit runs without internet. Generate QR codes anywhere, anytime.
What Is a QR Code?
A short, practical guide — what QR codes are, how they work, and where they are used today.
A QR code (Quick Response code) is a square barcode that stores information. When you scan it with your phone camera, it opens a website, connects to WiFi, makes a payment, or shows contact details — instantly.
QR codes were invented in 1994 by a Japanese company called Denso Wave. They were originally used to track car parts in factories. Today, you see QR codes everywhere — on restaurant menus, business cards, product packaging, event tickets, and payment apps.
Static QR Codes
The data inside a static QR code is fixed. Once you create it, the content cannot be changed. Static QR codes are best for WiFi passwords, contact details, and permanent links.
How QR Codes Work
A QR code stores data as black and white squares in a grid pattern. Your phone camera reads these squares and decodes the information. Error correction lets QR codes work even when partially damaged.
QR Code Use Cases
- Website links — Scan to open a webpage without typing
- WiFi sharing — Let guests connect to your WiFi instantly
- UPI payments — Accept digital payments by scanning
- Business cards — Share your contact info with one scan
- Restaurant menus — Show your menu on phones
- Event tickets — Scan to enter events and venues
- Product info — Show details, reviews, and origin
- App downloads — Link directly to app stores
- Real estate — Property listings & virtual tours
- Marketing — Track scans with UTM parameters
- Healthcare — Patient info & prescriptions
- Education — Course links & attendance
- Retail — Product pages & reviews
- Packaging — Authenticity & instructions
- Logistics — Shipment tracking & delivery updates
- Tourism — Attraction info & audio guides
- Construction — Safety data & inspection reports
- Government — ID verification & document access
- Automotive — Vehicle history & VIN lookup
Supported QR Types & Formats
- URL, WiFi, vCard, UPI, Email, SMS, Phone, Geo, Plain text
- PNG, SVG, PDF, EPS, JPEG, WebP, Base64 — 7 export formats
- 1,421+ QR code types across 38 categories
- Error correction L, M, Q, H — Level H for logo overlay
- Custom dot styles, finder patterns, frame templates
- Bulk generate 5,000+ QR codes with Grid PDFs & labels
- Decode to JSON, Python, JS, SVG, HTML, CSS, Markdown, Base64
- 14 barcode formats — Data Matrix, Aztec, PDF417, EAN-13, UPC-A, Code 128 & more
QREndlessPro lets you create all of these QR code types and 1,421+ more — completely free, right in your browser. No sign-up needed, no watermarks, and no data ever leaves your device.
Why Choose QREndlessPro
Ready to Create Your QR Code?
No sign-up. No limits. No cost. Create any QR code free in your browser.
Need many codes at once? Try our Free Bulk QR Code Maker