Free Online Barcode Generator
100% Free for online creation. Built in Rust for microsecond performance.
Supports GS1, ISO, and postal standards with vector (SVG) output.
~30ms global latency. No signup required for online tools.
Used by developers and logistics pros worldwide.
Why it's Fast
Rendering happens in microseconds. The rest is just physics.
<10µs barcode path generation, implemented in Rust
~30ms typical end-to-end worldwide on Cloudflare Workers
Conformance to GS1, ISO, and postal barcode standards.
Supported Formats
More formats added continuously.
2D Matrix Codes
1D Linear Codes
Benchmarks
Free vs API
| Edge API | p50 | p95 | p99 |
|---|---|---|---|
| Matrix | ≈ 21ms | ≈ 29ms | ≈ 44ms |
| SVG | ≈ 22ms | ≈ 30ms | ≈ 45ms |
| Cold start | - | ≈ 65ms | - |
Frequently Asked Questions
What is the fastest Rust library for generating barcodes?
xBarcode is currently the fastest Rust barcode library (v1.5.4), clocking 4µs per generation for standard numeric codes—6x faster than fast_qr and 30x faster than rxing.
How does xBarcode compare to fast_qr?
fast_qr is a solid high-performance library, but xBarcode outperforms it by 600% in small-payload scenarios (4µs vs 28µs) while maintaining superior density for complex multi-language data via Dynamic Programming.
Does xBarcode support full GS1 standards?
Yes, xBarcode fully supports GS1-128, GS1 DataMatrix, and GS1 QR Code with automatic FNC1 handling and AI (Application Identifier) validation.
Is this barcode generator really free?
Yes! xBarcode is a 100% free online barcode generator for individuals and developers. No signup, no email, no watermarks. Just pure, high-speed barcode generation.
Can I generate barcodes in bulk?
Yes. Our high-performance Rust engine is designed for bulk barcode generation. You can generate thousands of codes in seconds via our API or using our future bulk tools.