TTF to OTF Converter
Rewrap TrueType SFNT as OpenType (.otf) without redrawing glyphs.
Saves TrueType SFNT as OpenType (.otf) without redrawing glyphs — valid OpenType with TrueType outlines.
Choose a file or drag and drop
Drop your TTF file here or
Choose file · Drag & drop · Public file link
- Processed on your device
- No conversion file stored on our servers
- Maximum file size: 100 MB
Conversion runs in your browser. Files are not uploaded to Format Convertly servers.
Processed on your device
No conversion file stored on our servers
Conversion Settings
Customize the output to match your needs.
Convert Quality
92%Quality slider applies when the target is JPG, WebP, or AVIF.
Output
Output options for this format are applied automatically during browser conversion. Drop your file above to begin.
Advanced settings
Additional Options
How to Convert TTF to OTF
Add your TTF
Drop a TTF file into the browser panel. Nothing is sent to a remote queue.
Confirm settings
Review optional quality/size settings, then confirm OTF as the output.
Download OTF
Convert locally and download the OTF file when processing finishes.
Why Convert TTF to OTF?
Private by design
TTF → OTF runs in your browser. Files are not uploaded to a remote conversion queue.
Ready for the next step
Convert when a site, editor, or teammate expects OTF instead of TTF.
Preserve detail
OTF: none. Typically lossless or lightly transformed for editing and archival use.
Wide compatibility
TTF is commonly used for Desktop publishing and Office document branding.
TTF vs OTF
A quick side-by-side before you convert — deeper comparison lives on the full guide.
| Feature | TTF | OTF |
|---|---|---|
| Kind | font | font |
| Compression | none | none |
| Lossy / lossless | Lossless / not lossy | Lossless / not lossy |
| Transparency | Not supported / N/A | Not supported / N/A |
| Best for | Desktop publishing; Office document branding | Professional layout and branding; Advanced typographic features |
| Typical size | 50 KB – several MB depending on glyph coverage | 50 KB – several MB |
| Browser / web support | Can be used in @font-face but WOFF2 is preferred for the web | Prefer WOFF2 for web delivery |
| Compatibility | Universal on desktop OSes; browsers prefer WOFF/WOFF2 for @font-face | Excellent in design tools; convert CFF OTFs carefully when targeting TrueType-only pipelines |
Choose TTF when…
- Desktop publishing
- Office document branding
- Design tool type libraries
- Cross-desktop installs
Choose OTF when…
- Professional layout and branding
- Advanced typographic features
- Print design
- Desktop font libraries
What happens to quality?
TTF: TTF compression: none. Lossless (or non-destructive packaging) keeps reconstructable data — size savings come from packing efficiency, not throwing detail away. Typical size profile: 50 KB – several MB depending on glyph coverage. Quality note: Lossless vector outlines OTF: OTF compression: none. Lossless (or non-destructive packaging) keeps reconstructable data — size savings come from packing efficiency, not throwing detail away. Typical size profile: 50 KB – several MB. Quality note: Lossless vector outlines Saves TrueType SFNT as OpenType (.otf) without redrawing glyphs — valid OpenType with TrueType outlines.
Tip
Keep an original copy of your TTF file if you may need to reconvert later.
When should I use OTF?
OTF: OTF supports rich typographic features (ligatures, alternates) used in professional design. Use OTF/TTF on the desktop; serve WOFF2 on websites when licensing allows. Best for Professional layout and branding and Advanced typographic features.
OTF format guide →When should I keep TTF?
Keep TTF when you still need to edit or when it already matches your audience. TTF fonts install on Windows and macOS for documents and design. For the web, prefer WOFF2. Always check the font license before converting or embedding.
TTF format guide →TTF · OTF
Related converters TTF
Related converters OTF
Frequently Asked Questions
More on quality loss: conversion quality guides · problem-solution guides
Does converting TTF to OTF reduce quality?
Often no for lossless or remux-style paths. Quality drops when you re-encode with lossy settings, downscale, or flatten features like transparency.
Can you recover quality after converting?
Not from a lossy output alone. Return to the original master (or a better source). Converting to a lossless format does not resurrect discarded detail.
Where can I learn more about conversion quality?
Browse Format Convertly’s Quality guides for topics like whether conversion reduces quality, JPG↔PNG myths, WebP/MP3/MP4 tradeoffs, recovery limits, and generational loss — each links to the right converter.
Do you upload my font?
No. Font conversion runs in your browser with local JS/WebAssembly. Files are not uploaded to Format Convertly.
Are glyph outlines changed?
No for container conversions (TTF/OTF ↔ WOFF/WOFF2). Outlines stay the same; only the wrapper/compression changes. CFF→TrueType redraw is not supported in-browser.
What is a TTF file?
TTF is TrueType Font — a scalable font format with glyph outlines for desktops and design apps. TTF fonts install on Windows and macOS for documents and design. For the web, prefer WOFF2. Always check the font license before converting or embedding.
What is a OTF file?
OTF is OpenType Font — an advanced scalable font format extending TrueType/CFF outlines. OTF supports rich typographic features (ligatures, alternates) used in professional design. Use OTF/TTF on the desktop; serve WOFF2 on websites when licensing allows.
Is TTF to OTF free?
Yes. Format Convertly conversions are free to use in your browser with no signup required.
Ready to Convert Your Files?
TTF to OTF privately in your browser.