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OTF to TTF Converter

Turn OTF files into TTF in a couple of clicks. OTF is OpenType, with advanced typographic features; TTF is the classic desktop font format. The conversion is lossless — every pixel, sample or byte in the source is preserved.

Not uploaded to any serverConverted on this deviceGone when you close the tabHow this works

Drop your files here

OTF files (.otf) · up to 40.0 MB each

or paste files from your clipboard

Ready when you are

Drop a OTF file above and FileTools360 will turn it into TTF — right here on your device, without uploading anything.

⌘K to search converters

How to use it

  1. 1

    Add your OTF files

    Drag them onto the drop area, choose them from your device, or paste them from your clipboard. You can queue several at once. Nothing is sent anywhere — the file stays on this device.

  2. 2

    Adjust the settings if you want to

    The defaults suit most people. Open Advanced to control the output settings.

  3. 3

    Convert and download

    Press Convert. Everything happens on your own device — nothing is uploaded. Download files one by one, or grab them all as a ZIP.

Privacy, in plain words

Is it safe? Your OTF file is not uploaded anywhere

What “uploaded” normally means. On most online converters, pressing the button copies your file across the internet onto a computer owned by that website. That copy is what the word “upload” means, and it is the part nobody explains.

What happens instead. This site does not do it. There is no server here that receives files, so your OTF file is read, converted and handed back by the browser you are using right now. It never travels — so there is no copy to store, read, leak or hand over.

Check it yourself in ten seconds

Turn off your Wi-Fi after this page has loaded, then convert a file anyway. It still works, because everything needed is already on your device.

The longer explanation of how this works, and the full detail of what is and is not stored on the privacy page.

Why this matters more than it sounds

A font is licensed rather than owned, and the licence usually says something specific about copies. It matters more than it sounds, because of what font files usually are:

Fonts with embedded metadata

which names the licensee inside the file

Licensed commercial typefaces

where redistribution is a contract breach

Custom brand fonts

drawn for one company and not released

Client brand assets

held by you under an agreement with somebody else

A file that is never sent cannot be kept, leaked, subpoenaed or used to train anything. That is a property of how this works, not a promise about how carefully it is run.

OTF and TTF explained

OpenType extends TrueType with cubic curves and, more importantly, advanced typographic features: ligatures, small caps, stylistic alternates and proper multilingual shaping.

TrueType describes glyph outlines with quadratic curves and includes hinting instructions that improve rendering at small sizes on low-resolution screens.

Where OTF files come from
Professional type foundries and design workflows.
Where TTF is used
System fonts and font downloads for desktop installation.

OTF vs TTF

The two formats solve different problems, which is why converting between them involves trade-offs rather than a straight upgrade.

OTF compared with TTF
PropertySourceTarget
CompressionNoneNone
Introduced19961991
Browser supportEvery modern OS and design tool.Every operating system.
OTF is stronger at
Advanced typographic features. Better multilingual support. Cross-platform.
TTF is stronger at
Installs on every operating system. Detailed hinting for small-size rendering. Widely supported by design software.

Why convert OTF to TTF?

People make this switch when they run into the limits of OTF: web delivery. TTF is the better fit when installing a font on a computer or using it in design software.

OTF limitations that prompt the switch
Uncompressed, so it is a poor web font. Advanced features need application support to be usable.
What you give up
Uncompressed, so it wastes bandwidth as a web font. Fewer advanced typographic features than OpenType.

What is preserved when converting OTF to TTF?

Both formats store the content without discarding data, so this conversion preserves it exactly. The file size may change because the two formats compress differently, but the content itself is unaffected.

About these formats

Source

OpenType Font

OpenType with advanced typographic features.

Extensions
.otf
MIME type
font/otf
Best for
Professional typography · Ligatures and alternates
Compatibility
Every modern OS and design tool.

Target

TrueType Font

The classic desktop font format.

Extensions
.ttf
MIME type
font/ttf
Best for
Desktop installation · Design software
Compatibility
Every operating system.

Glyph outlines and metadata are preserved. Converting a font does not grant you the right to redistribute or embed it — check the licence that came with the file.

Good to know

OTF to TTF Converter — questions

How do I convert OTF to TTF?

Drop your OTF file onto the area above, then press Convert. The TTF file saves straight to your device. You do not need an account, and there is no watermark.

Is it safe to convert OTF files here — are they uploaded to a server?

No, nothing is uploaded. On most online converters, pressing the button copies your file across the internet onto a computer owned by that website; it is converted there and sent back. That copy is what "upload" means, and it is the part that puts your file out of your control. This site does not do it. Your OTF file is read and converted by the browser you are using right now and never leaves this device, so there is no copy for anyone to store, read or hand over. You can prove it: turn off your Wi-Fi after this page loads and the conversion still works.

Can I convert confidential OTF files, like bank statements or contracts?

Yes, and that is the case this site was built for. Because the file never leaves your device, a confidential document is no more exposed than it is sitting in your own folder — there is no transfer, no copy on someone else's hardware, no retention period to read about and no staff with access. Nothing is logged about the file either: not its name, not its size, not its contents. The one thing worth saying plainly is that this protects the file in transit and at rest on our side, not from anything already on your own computer.

What should I know before converting OTF to TTF?

Glyph outlines and metadata are preserved. Converting a font does not grant you the right to redistribute or embed it — check the licence that came with the file.

What is preserved when converting to TTF?

Everything in the file carries over. TTF stores the same values as OTF, so the data itself is unchanged — what differs is the syntax around it, and anything TTF has no way to express, such as comments, is dropped.

How large a file can I convert?

Up to 40 MB per file for this conversion. Because the work happens in your browser, the practical limit is your device's memory — larger files work on a desktop with plenty of RAM and may fail on an older phone.

Can I convert several files at once?

Yes. Add as many as you like and press Convert All. Each file is processed independently, so one failure does not stop the rest, and you can download everything together as a ZIP.

Can I use this on my phone?

Yes. FileTools360 works in mobile browsers on iOS and Android. Pick the file through your phone's file picker — Files on iOS, or Downloads on Android — including files stored in iCloud or Google Drive.

Related converters

All font converters
OTF → WOFF
OTF → WOFF2
WOFF → TTF
WOFF2 → TTF
TTF → WOFF2
TTF → WOFF
WOFF → WOFF2
WOFF2 → WOFF

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