OTF WOFF

OTF to WOFF Converter

Convert OTF to WOFF in your browser. Free, private, and fast. Keep every glyph and metric unchanged without sending files to a server.

Drag & drop your OTF file here

or

Max file size: 50 MB · Your file stays in your browser

Your file is processed locally in your browser — nothing is ever uploaded.

Why Convert OTF to WOFF?

Converting OTF to WOFF is a common task whenever a file has to work somewhere that expects the other format. OTF is the OpenType font format from Adobe and Microsoft. WOFF is the font format made for websites. This converter makes the switch locally in your browser — nothing is uploaded.

Common use cases

  • You have a OTF file and need it in WOFF format.
  • The target software or platform requires WOFF but your file is in OTF.
  • Typical use of WOFF: Hosting a font on your own website without third-party services.
  • You want to reduce file size or improve compatibility without using desktop software.
Keep in mind: WOFF2, the newer and smaller variant, uses Brotli compression and is not supported by this tool.

How to Convert OTF to WOFF

  1. Upload or drop your OTF file into the converter above.
  2. Adjust any output settings for WOFF if needed.
  3. Click Convert and download your converted file instantly.

About the Formats

OTF (OpenType Font)

OTF is the OpenType font format from Adobe and Microsoft. It can store PostScript-style (CFF) outlines and advanced typographic features such as ligatures and alternate glyphs.

Compatibility: Supported by modern operating systems, design software and all current browsers.

WOFF (Web Open Font Format)

WOFF is the font format made for websites. It wraps a TrueType or OpenType font in a compressed container, so pages download faster, and every current browser supports it.

Compatibility: Supported by every current browser, including Chrome, Firefox, Safari and Edge.

100% Private & Browser-Based

Your files never leave your device. All conversion happens locally in your browser — nothing is uploaded to any server. No sign-up required.

TTF to WOFF Converter

Need the reverse?

WOFF to OTF Converter

FAQ

Frequently Asked Questions

Yes — completely free with no sign-up, no watermarks, and no size limits for typical files.

Quality depends on the output settings. For lossless output, choose the highest quality setting available.

Your file is processed entirely within your browser using local JavaScript. It is never uploaded to any server. Only you can access your file.

For browser-based conversion, files up to 50 MB work best. Very large files may take longer depending on your device. We recommend splitting very large files before converting.

Currently, AintoB converts one file at a time to keep the browser-based process simple and private. Reload the page to convert another file.