About cnvrt.to
Reinventing file conversion through pure client-side WebAssembly, V8 isolated memory heaps, and developer-grade aesthetics.
The Zero-Server Philosophy
For decades, legacy online file converters forced users into an unacceptable compromise: transmitting confidential financial ledgers, HIPAA medical scans, proprietary source code, and personal photos to unverified third-party cloud servers.
cnvrt.to was architected on a fundamental thesis: modern client hardware is a supercomputer. By compiling native C/C++, Rust, and assembly transcode engines to WebAssembly (WASM SIMD) and HTML5 Canvas 2D, all file manipulation is executed 100% locally within your browser sandbox.
0.00 KB Network Egress
Zero bytes of user payload ever travel across the internet.
Hardware WASM Core
Near-native execution speed compiled for multithreaded CPU instruction sets.
100% Free & Unlimited
Zero backend cloud compute overhead enables completely unmetered usage.
Core Technical Stack & Standards
PDF Engine (ISO 32000-2)
Compiled stream deflaters and cross-reference table transformers providing lossless page manipulation, concatenation, and coordinate rotation.
Image Pipeline (W3C & ITU-T)
Browser-native Canvas 2D and OffscreenCanvas supporting lossy/lossless WebP, PNG, JPEG, SVG, and high-efficiency HEIC decoding.
Ready to transcode files privately?
Start converting your documents, images, audio, and datasets with 0 server uploads.
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