About Barcode.onl
31 barcode, QR & GS1 tools with labels, scanning, offline use and source code.
Barcode.onl combines 31 browser-based barcode, QR and GS1 tools with 12 educational guides. Built for ecommerce sellers, retailers, publishers and warehouse teams, it covers the workflow from generating a single code to preparing labels and counting stock. WHAT THE BUYER GETS The Barcode.onl domain, complete application source code, original website design and brand assets, all 31 tools, all 12 guides, automated tests, build scripts and setup/deployment documentation. Third-party libraries retain their respective licenses. PRODUCT HIGHLIGHTS Generate barcodes in 23 formats, including UPC, EAN, ISBN, Code 128, ITF-14, Data Matrix and PDF417. Create standard and custom QR codes, Wi-Fi codes and contact cards. Dedicated GS1 tools include GS1-128, SSCC, GS1 DataMatrix and GS1 Digital Link. Import spreadsheets for bulk generation, export ZIP batches and print vector label sheets with Avery or custom layouts. Read codes using a camera, images or a USB scanner, count stock offline and export counts to Excel. Additional tools check barcode numbers, ISBNs, check digits and print preparation. Export options include SVG, PDF, EPS, PNG, WebP and JPEG. Generators decode their output to check the data, and styled QR downloads stay locked until decoding succeeds. GS1 data is validated with the GS1 Barcode Syntax Engine. The responsive interface includes light/dark themes, offline support and app installation. Tool processing takes place in the browser without uploading user inputs. Barcode lookup currently validates numbers; it is not an active product database. TECHNOLOGY AND COSTS Astro 7.4.0, TypeScript, Tailwind CSS 4, bwip-js and zxing-wasm, hosted as Cloudflare Workers static assets. No application backend, server database or paid API dependency. Cloudflare hosting is free; domain renewal averages approximately $1/month. The homepage scored 100/100 for Performance, Accessibility, Best Practices and SEO on both mobile and desktop in PageSpeed Insights reports dated 26 October 2026. Scores can vary between pages and runs. CURRENT STAGE AND OPPORTUNITY This is a newly launched, pre-revenue project with no established traffic history or email list. Analytics, advertising and billing are not installed. The sale is based on the domain, working product, content and code. Future development options include affiliate partnerships for relevant hardware/software, paid saved templates or team workflows, a separately developed API, translations and additional guides. Existing batch and export tools are free. No earnings or traffic results are promised. REASON FOR SELLING AND SUPPORT Building websites and transferring them to new owners is part of my ongoing work. I am selling Barcode.onl so a buyer can take over marketing, growth and monetization while I focus on my next projects. Post-sale support is included: I will help with the handoff, walk through the setup, and make sure the site is running under your control. The buyer adds their operator details to the informational/legal pages and configures the contact mailbox. Explore Barcode.onl and get in touch to discuss the acquisition.
For sale
Asking price: $1,500 USD
What's included
Domain name, Source code, All related design work
All 31 tools, all 12 original guides, brand assets and social sharing graphics, automated tests, build scripts and setup/deployment documentation. Third-party components retain their licenses. No customer database, email subscriber list or social accounts are included. Post-sale support is included: I will help with the handoff, walk through the setup, and make sure the site is running under your control.