TTF to OTF Converter
Convert TrueType fonts to OTF in your browser. OTF is ideal when you need print design and apps that prefer OpenType, while TTF is better known for broad desktop support for design and office apps.
- Files never uploaded
- Instant, on-device
- Free & no sign-up
Drop TTF files here, or browse
TTFOTF · files stay on your device
up to 10 MB per file · up to 20 files per batch
How to convert TTF to OTF
- Step 01
Add your TTF file
Drop one or many TTF files onto the converter, or browse from disk. Stay within the on-device size limits shown under the drop zone — oversized files are rejected so your tab does not freeze.
- Step 02
Convert the typeface
Transform TTF into OTF with an in-browser font engine. Licensed fonts never upload to a remote converter.
- Step 03
Download OTF
Download your new OTF file immediately. Multiple outputs pack into a single ZIP archive.
Why convert TTF to OTF
TTF is a TrueType font valued for broad desktop support for design and office apps, while OTF fits print design and apps that prefer OpenType. Converting TTF to OTF in-browser lets designers and developers reshape type without installing desktop font utilities or uploading licensed faces to a third-party site.
When to use this tool
- A tool, form, or teammate asked for OTF, but you only have TTF.
- You are optimizing for print design and apps that prefer OpenType instead of staying in TTF.
- Your design or web stack expects OTF instead of a TTF desktop/web font package.
Good to know
- Output characteristics follow OTF: advanced typographic features for professional layout.
- Source quirks still apply — TTF is limited by heavier than modern web font packages, and conversion cannot invent missing data.
- Hinting and advanced OpenType features can differ after conversion — proof glyphs in your target app.
- Browser limit: about 10 MB per font file, up to 20 files per batch.
- Need a bigger file? For unusual or massive font packages, use fonttools, FontForge, or your foundry’s desktop utilities.
File size limits for TTF to OTF
Browser limit: about 10 MB per font file, up to 20 files per batch.
Why there is a limit
Font conversion still loads the whole file into memory. Caps are generous for normal typefaces and mainly block accidental huge binaries.
If your file is too large
For unusual or massive font packages, use fonttools, FontForge, or your foundry’s desktop utilities.
TTF to OTF FAQ
Common questions about converting TTF files to OTF.
Is this TTF to OTF converter free?
Yes. Browser Convert does not charge for TTF → OTF, add watermarks, or require an account.
Will every glyph look identical after TTF to OTF?
Most glyphs transfer cleanly. Hinting, kerning, and advanced OpenType tables can differ — always proof critical characters.
Is converting TTF to OTF legal for licensed fonts?
Format conversion does not change the license. Only convert fonts you have rights to use, and keep redistribution within the license terms.
Is TTF to OTF conversion private on Browser Convert?
Yes. Your TrueType font is processed in the browser. We do not upload the file to convert it, which is the main difference from typical online converters.
Are there file size limits for TTF to OTF?
Yes. Browser Convert accepts about 10 MB per file, with up to 20 files queued at once. Font conversion still loads the whole file into memory. Caps are generous for normal typefaces and mainly block accidental huge binaries. If your file is larger, For unusual or massive font packages, use fonttools, FontForge, or your foundry’s desktop utilities.
Can I convert several TTF files to OTF at once?
Yes. Queue up to 20 TTF files and convert them in one pass. When finished, download the batch as a ZIP. Very large batches may need to be split so your browser stays responsive.