resvg is an SVG rendering library.
resvg can be used as a Rust library, a C library and as a CLI application
to render SVG files based on a
static
SVG Full 1.1 subset.
The core idea is to make a fast, small, portable SVG library designed for edge-cases.
Right now, a resvg CLI application is less than 4MiB and doesn't require any external dependencies.
At the moment, there are no production-ready 2D rendering libraries for Rust.
Because of that, resvg relies on [Skia].
Another major difference from other SVG rendering libraries is that resvg does a lot
of preprocessing before rendering. It converts an input SVG into a simplified one
called Micro SVG and only then it begins rendering.
So it's very easy to implement a new rendering backend.
But we officially support only the Skia one.
And you can also access Micro SVG as XML directly via the usvg tool.
resvg is aiming to support only the static
SVG subset; e.g. no a, script, view or cursor elements, no events and no animations.
SVG Tiny 1.2 and SVG 2.0 are not supported and not planned.
Results of the resvg test suite:
You can find a complete table of supported features here. It also includes alternative libraries.
Comparing performance between different SVG rendering libraries is like comparing
apples and oranges. Everyone has a very different set of supported features,
implementation languages, build flags, etc.
But since resvg is written in Rust and uses [Skia] for rendering - it's pretty fast.
Despite being a Rust library, resvg depends on [Skia] and [harfbuzz],
therefore you will need a modern C++ compiler. But in most cases the compilation
process should be as easy as:
cargo build --release
which will produce binaries that doesn't require any external dependencies.
And while we can leave harfbuzz compilation to Cargo, Skia is more troublesome.
Mainly because it
requires
clang and no other compilers.
By default, resvg uses it's own Skia bindings called
tiny-skia. Which supports only clang too.
See the Build with embedded Skia
section for details. And yes, you can use your own Skia build too.
Also, we do not support 32-bit builds and MINGW target.
Since resvg depends on C++ libraries, it's inherently unsafe in Rust terms.
Despite of that, most of the dependencies are actually fully safe.
The main exceptions are [Skia] and [harfbuzz] bindings, and files memory mapping.
resvg project is licensed under the MPLv2.0.