Made possible by open source.

All editor processing takes place in the browser. The packages below are bundled with the site; no third-party CDN is required at runtime.

DejaVu fonts

Bundled DejaVu Sans, DejaVu Serif, and DejaVu Sans Mono. These are free and open-source fonts based on Bitstream Vera, with public-domain DejaVu changes.

Full font copyright and license notices · DejaVu project and sources

FFmpeg WebAssembly

ffmpeg.wasm single-thread core 0.12.10. The core includes FFmpeg 5.1.4 and enabled libraries including x264, under GPL-2.0-or-later. The encoder runs inside a dedicated worker on this device.

GPL version 2 license · Build source and dependency versions · FFmpeg project

HEIC / HEIF decoding

Bundled libheif-js 1.23.5 provides local WebAssembly decoding of HEIC images. The decoder is loaded only for HEIC/HEIF imports.

Library and dependency license notices · libheif-js source · libheif source

Native media and optional speech recognition

Mediabunny 1.61.5 provides local WebCodecs decoding, encoding, and MP4/MKV container writing under the Mozilla Public License 2.0. License · Corresponding bundled source · Upstream source.

Transformers.js 3.8.1 is bundled for optional on-device Whisper recognition under Apache 2.0. The matching ONNX Runtime Web WASM is bundled under MIT with third-party notices. The Transformers distribution is adapted to classic scripts and its bundled WASM factory so downloaded HTML can run without module-network loading. Transformers license · ONNX license · ONNX third-party notices. The optional Whisper Tiny English model is downloaded separately or selected locally; its model license applies.

Source and build information

The core package version 0.12.10 is identified in the upstream v12.15 release. These numbers are different: upstream v0.12.10 identifies an older core release. Build recipes include dependencies pinned to branches as well as tags. Local binary and license inventory. This page supplies provenance information and preserves license rights; it does not claim that an exact complete corresponding-source bundle has been independently verified. Source-distribution review remains an owner action.

The unmodified binary packages distributed here are @ffmpeg/core 0.12.10 and libheif-js 1.23.5. The FFmpeg core reports FFmpeg 5.1.4 with x264, x265, libvpx, LAME, Theora, Vorbis, Opus, zlib, WebP, FreeType, FriBidi, libass, and zimg enabled. Upstream repositories provide their build scripts, dependency versions, and applicable license details.

FFmpeg 5.1.4 source archive · WebAssembly core build scripts · HEIC decoder sources and build instructions

The application-specific encoder and decoder worker source is delivered as readable JavaScript: encoder-worker.js and heic-worker.js. For a missing notice, source-access concern, or attribution correction, contact yapperyapemail@proton.me. Your rights under the third-party licenses are not restricted by the site Terms.

Custom fonts remain on your device. Their original licenses apply.

Markdown rendering

Notes bundles markdown-it 14.1.0 under the MIT license. Copyright and license · Dependency notices · Versioned source. Raw HTML and automatic remote images are disabled in the Notes renderer.

3D Modeler rendering and solid geometry

3D Modeler bundles Three.js 0.128.0 and its OrbitControls/TransformControls under MIT, plus @jscad/modeling 2.12.6 under MIT. The JSCAD CommonJS imports are rewritten into a classic browser bundle; geometry calculations run locally, including in a worker. Three.js license · JSCAD license · Adapted geometry-code notices · Three.js versioned source · JSCAD source. The binary FBX mesh writer is implemented in the application without the Autodesk SDK. FBX support does not imply affiliation with Autodesk. This application is independent of Tinkercad, Roblox, and their owners.

More information

Accessibility · Security / copyright reports · Owner legal review