Free Online Barcode Generator & High-Performance API
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.
Completes check digits when their position is clear. Use parenthesized AIs for GS1. Existing check digits are validated. Other formats keep their usual behavior.
Three Ways to Use xBarcode
Whether you need an instant vector barcode for design, microsecond native algorithms in your backend, or a global edge API for logistics printing, xBarcode has you covered.
Zero-Install Web Studio
Explore 143 barcode formats and presets, grouped by symbol structure: linear, matrix, stacked, four-state and composite. Generate SVG and EPS online.
Microsecond Rust Core
Sub-10µs per barcode, zero GC pauses, dynamic programming density optimization, and strict ISO/GS1 conformance for high-throughput backends.
Global Edge Microservice
Deployed globally on Cloudflare Workers edge network with ~20ms p50 latency. Built for automated print pipelines, ERP, and logistics.
Supported Formats
Every format has a dedicated generator, input guidance, and vector export.
Popular Standards
Postal & GS1 Carriers
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 and 2D matrix engine (v1.6.8), clocking 4µs per generation for standard numeric codes—supporting 143 international and industry standards, 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, GS1 QR Code, and GS1 Digital Link 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 high-throughput bulk barcode generation. You can generate tens of thousands of codes in seconds via our Edge API or natively via our Rust Crate.
API Preview
One request. One barcode. Microsecond rendering at the edge.