🔒 100% Client-Side — No Data Uploaded
Free Barcode Generator for
Etsy Sellers & DevOps Teams
Generate printable barcode labels in seconds. Code 128, EAN-13, UPC-A, and Code 39 — all in your browser. No signup, no watermark, no cost.
Everything — barcode rendering, PDF building, printing — happens on your machine. Nothing is sent to a server, and the page keeps working after the first load, even fully offline.
vs BarcodesInc $29/yr — this is free forever
vs BarTender $300+/yr — this is free forever
Features
- Four barcode types: Code 128, EAN-13, UPC-A, Code 39
- Batch generate up to 200 barcodes per PDF — all laid out on a single printable sheet
- Preset label sizes for Etsy sellers (2"x1", 3"x1", 4"x2.5"); pick a size and the grid matches it
- No signup, no account, no tracking
- 100% client-side — your data never leaves your browser
- Works offline in any modern browser
- Print-ready PDF output arranged on label sheets
- No watermark, no ads, no upsells
- Full commercial & resale use included — no separate license
Performance
This measures only the barcode encoding step of the app's Rust/WASM core: 1,000 encodes of one value take about 5–15 ms total (about 5–15 µs each, depending on the format), run with Node.js on our build server by benchmark.py. Drawing the barcodes and building the PDF happen in your browser, so their speed depends on your device. Everything runs locally after the first load: no uploads, no server round-trips.
Barcode & Label Generator vs BarcodesInc
| Feature | Our Tool | BarcodesInc |
|---|
| Price | Free forever | $29/year |
| Account required | No | Yes |
| Offline use | Yes | No |
| Data privacy | Client-side only | Server processed |
| Batch generate | Up to 200 | Free |
| Watermark | None | Yes (free tier) |
| Label sizes | 4 presets (Etsy standard) | Custom sizes |
| Commercial & resale use | Included | Included |
Compare with Popular Alternatives
Our tool is free forever and runs entirely in your browser. See how we stack up against the paid options below. Every comparison page breaks down pricing, privacy, and feature differences in detail.
- vs BarcodesInc — BarcodesInc charges $29/year and requires a server upload. Ours is free and stays local.
- vs Zebra — Zebra hardware is expensive and tied to their ecosystem. Our PDF output prints on any standard printer.
- vs BarCode Studio — BarCode Studio is a desktop app that requires installation. Ours runs in any browser, even on Chromebooks.
- vs BarTender — BarTender charges $300+/year per license and runs on Windows only. Ours is free and runs in any browser.
What you can do with the labels
The PDF sheet is the starting point, not the finish line. Retail sellers attach the barcodes to product listings: a customer scans the code and the right variant, color, and size resolve instead of a search. The same sheet doubles as order and inventory paperwork — scan a Code 128 shipping label at fulfillment to pick the right order, or scan a Code 39 bin tag to know where stock actually sits.
Every label comes out of the browser, so it works with any reader and any printer you already own: phone cameras, desktop scanners, and thermal label printers alike. And because nothing is uploaded, the labels you print for customers or internal stock never pass through a third party.
Choosing a barcode symbology
The four formats differ in what they can hold and where they are expected. Retail shelf products scanned at a checkout need a GS1-style code — EAN-13 for most of the world, UPC-A for North America. Code 128 and Code 39 carry text you choose yourself, so they fit shipping labels, internal SKUs, asset tags, and URLs. The practical rule: retail channel forces the choice; every other label, pick Code 128 for length and Code 39 where older industrial equipment expects it.
How It Works
Generate printable barcode labels in three simple steps. No account, no software install, no data leaves your computer. Each step is visible in the browser before anything is printed, so you can catch typos or wrong formats first.
- Choose your barcode type — Code 128 (most flexible, any text), EAN-13 (retail standard), UPC-A (North American retail), or Code 39 (industrial).
- Enter your data — Type the product code, SKU, or any string. For EAN-13 and UPC-A, the check digit is calculated automatically.
- Download your PDF — Select a label size (2″×1″, 2.5″×1″, 3″×1″, or 4″×2.5″), choose how many copies (1–200), and click Download. The PDF is arranged on an A4 sheet, ready to print on label stock.
For a complete walkthrough with screenshots and tips for Etsy, shipping, and inventory use cases, see our How to Generate Barcode Labels guide.
FAQ
Is it really free? Yes. No signup, no trial, no hidden fees, no commercial-use restriction. Use it forever.
Do I need to install anything? No — it runs in your browser. Works offline after first load.
What barcode types are supported? Code 128 (most versatile), EAN-13 (standard retail), UPC-A (North America retail), Code 39 (industrial).
Can I generate multiple barcodes? Yes — batch mode lets you generate up to 200 barcodes in a single PDF, arranged on label sheets.
Is my data safe? Your barcode data never leaves your browser. Everything is generated client-side using JavaScript.
How does this compare to BarTender? Unlike BarTender ($300–$600/year per license, Windows-only), our tool is completely free, runs in any browser, works offline, and never uploads your data to a server. No account, no subscription, no installed software.
For Backend & DevOps Developers
Can I use this in CI/CD pipelines? Yes — the tool is 100% client-side. You can generate barcodes via browser automation (Puppeteer, Selenium) in your deployment pipeline without any server dependency.
Does it work in air-gapped environments? Yes. Once loaded, all barcode generation happens client-side. No internet connection required after the first page load. Service worker caching enables full offline use.
Can I integrate this into my own applications? The underlying technology (JsBarcode + pdf-lib) is open-source and MIT-licensed. You can embed the same logic into your own Node.js, Python, or Go applications.
Is this suitable for compliance-sensitive environments? Yes. Your data never leaves your browser — no server uploads, no third-party API calls. Ideal for healthcare, finance, or government use cases where data sovereignty matters.
What about bulk/automated label generation? Batch mode supports up to 200 barcodes per PDF. For larger-scale needs, combine with browser automation scripts or headless Chrome for unattended generation.
Technical Implementation
Built with JsBarcode (MIT) for barcode rendering and pdf-lib (MIT) for PDF generation. All processing happens in-browser via WebGL-accelerated canvas rendering. Zero server-side dependencies. Service Worker enabled for offline-first PWA support.