Add your OTF file
Drop one or more .otf files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
OTF to TTF
Converting a .otf font to .ttf repackages the same glyphs and metrics for a different delivery target. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop OTF files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting OpenType font to TrueType font
Converting a .otf font to .ttf repackages the same glyphs and metrics for a different delivery target. An .otf file is an OpenType font, most often one whose glyphs are drawn with PostScript-style cubic Bezier outlines stored in a CFF table. OpenType's real contribution is its layout intelligence: ligatures, small caps, contextual alternates, and complex-script shaping all live in standardized tables inside the font.
TrueType fonts, extension .ttf, describe each glyph as outlines built from quadratic Bezier curves plus hinting programs that fine-tune rendering at small sizes. It has been the workhorse desktop font format for over three decades and remains the base technology inside most fonts installed today. For this route the practical draw is installs and renders everywhere, from decades-old systems to current ones and excellent small-size rendering when well hinted — balanced against uncompressed, so files are several times larger than their WOFF2 equivalents on the web, which is worth knowing before you commit a large batch.
Why convert OTF to TTF?
The practical trigger for this conversion is usually a mismatch: with .otf, cFF rendering at small sizes on low-DPI screens historically trailed well-hinted TrueType. Switching to .ttf buys you installs and renders everywhere, from decades-old systems to current ones, which is why it is the better fit for installing fonts on Windows, macOS, and Linux desktops. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
OTF vs TTF at a glance
| Aspect | OpenType font (.otf) | TrueType font (.ttf) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | uses the same sfnt table architecture as TrueType; the .otf extension conventionally signals CFF (cubic) outlines, while .ttf signals quadratic glyf outlines | an sfnt container of tagged binary tables: glyf for outlines, cmap for character mapping, name for naming, hhea and hmtx for metrics |
| Strongest at | professional typesetting where advanced typographic features matter | installing fonts on Windows, macOS, and Linux desktops |
| Weak spot | cFF rendering at small sizes on low-DPI screens historically trailed well-hinted TrueType | uncompressed, so files are several times larger than their WOFF2 equivalents on the web |
| Metadata | name-table records cover naming, version, designer, description, and full license text, and the OS/2 fsType bits encode the embedding permissions that font licensing hinges on | the name table stores family and style names, version, copyright, trademark, designer, and license URL, while OS/2 table bits declare embedding and installation permissions |
Pick TTF as the output
Select .ttf in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if TTF is selectable, the route is real and validated.
Convert on your device
Press Convert. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid TTF file. Outputs keep the original filename with the .ttf extension.
OTF to TTF questions, answered
Will converting OTF to TTF lose quality?
Since otf is container-oriented and ttf is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .ttf itself requires.
Is it private to convert OTF files here?
Yes — the .otf file is processed inside your browser tab and never uploaded. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip. Close the tab and the file is gone from memory.
Where will the TTF file work?
Every operating system — Windows, macOS, Linux, iOS, Android — installs and renders .ttf natively, and all browsers accept it as a web font. On the web it works but wastes bandwidth, which is why the standard split is serving WOFF2 online and keeping TTF for desktop installation.
Will the TTF file be bigger or smaller than my OTF?
It depends on the content: an sfnt container of tagged binary tables: glyf for outlines, cmap for character mapping, name for naming, hhea and hmtx for metrics. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my OTF file?
In .otf, name-table records cover naming, version, designer, description, and full license text, and the OS/2 fsType bits encode the embedding permissions that font licensing hinges on. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.