WOFF to MNG Converter

Create animated MNG images from web font glyphs online

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Lossless Quality

MNG preserves every detail of rendered WOFF font glyphs with PNG-based lossless compression — no artifacts or color banding.

Server Rendering

All image generation happens on Convertio servers, keeping your device free from font rendering and image processing workloads.

Secure Conversion

Uploaded WOFF files are removed immediately, and MNG output is deleted within 24 hours — your font data stays private throughout.

How to convert WOFF to MNG

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose mng or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your mng file right afterwards

About formats

WOFF (Web Open Font Format) is a web font container format developed by Jonathan Kew, Tal Leming, and Erik van Blokland, and standardized by the W3C as a Recommendation in December 2012. The format wraps existing TrueType or OpenType font data in a compressed container with additional metadata, specifically designed for efficient delivery over HTTP as part of web pages using the CSS @font-face rule. WOFF applies table-level zlib compression to the font data, typically achieving 40-50% size reduction compared to raw TTF or OTF files, while preserving every table and glyph exactly. An extended metadata block allows foundries to embed licensing information, credits, and descriptions that travel with the font file. WOFF was created to address a practical impasse: type foundries were reluctant to allow their fonts on the web in raw TTF/OTF form (easily installable as desktop fonts), while the web standards community needed a freely implementable font delivery mechanism. One advantage is universal browser support — every modern browser across desktop and mobile platforms renders WOFF natively, making it the baseline format for web typography. The distinct file signature and container structure also provides a licensing benefit, giving foundries a format distinguishable from desktop fonts while remaining technically straightforward. WOFF 2.0, standardized in March 2018, replaces zlib with Brotli compression for an additional 20-30% size reduction and has achieved similarly broad browser adoption. Together, WOFF and WOFF2 enabled the custom web typography revolution that transformed web design from a handful of system fonts to millions of typeface options.
Developer: W3C
Initial release: December 13, 2012
MNG (Multiple-image Network Graphics) is an animation and multiple-image format designed as the animated counterpart to PNG, with its specification reaching version 1.0 on January 31, 2001. Developed by Glenn Randers-Pehrson and members of the PNG development community, MNG extends PNG's capabilities with support for frame-based animation sequences, slide shows, complex sprite overlays, and JNG (JPEG Network Graphics) frames for lossy compression of photographic content within the same container. An MNG file consists of a series of chunks (following PNG's chunk-based architecture): MHDR and MEND chunks bookend the datastream, with embedded PNG or JNG images as individual frames and control chunks (DEFI, FRAM, LOOP, ENDL, TERM, BACK, BASI, CLON, PAST, DISC, SHOW) directing playback timing, looping behavior, layer compositing, and memory management. The format supports both full-frame replacement and delta (difference) updates for efficient encoding of animations with static backgrounds, as well as object-based animation where sprites are defined once and repositioned across frames. One advantage is technical sophistication: MNG provides a level of animation control that GIF and APNG cannot match — frame-accurate timing, nested loops, conditional branches, interframe compression, and mixed lossy/lossless content within a single animation. The PNG-based foundation ensures lossless quality with full alpha transparency for each frame. MNG is supported by ImageMagick, GIMP, and various media players, though browser support was limited, which led to APNG's emergence as a simpler alternative for web animation.
Initial release: January 31, 2001

Frequently Asked Questions

Why convert WOFF to MNG?

MNG extends PNG with animation support and lossless compression. Font glyph renders in MNG preserve sharp text quality across animated frames.

How do I open an MNG file?

Firefox renders MNG natively. GIMP, ImageMagick, and XnView also support MNG viewing and editing for both static and animated content.

What is MNG format?

MNG (Multiple-image Network Graphics) is the animated extension of PNG, supporting lossless compression, transparency, and multi-frame sequences.

Is MNG better than GIF for text?

Yes, MNG uses lossless compression and supports more than 256 colors, producing sharper text renders with smooth antialiasing compared to GIF.

Is WOFF to MNG conversion free?

Yes, completely free on Convertio. Upload, convert, and download — no animation software or special tools needed.