Open WOFF File Online: Free WOFF and WOFF2 Viewer

This free online font viewer opens WOFF and WOFF2 files in seconds. Preview the font, read its details, view every glyph and convert it to TTF or OTF. It all happens in your browser. Your file is never uploaded.

Drop your .woff file here

or click to browse. Works with WOFF, WOFF2, TTF and OTF files.

Choose font file

100% private: your font is opened in your browser and never uploaded to our server.

Free to use
No sign-up
Files stay on your device
Works on Windows, Mac, Android and iPhone

How to open a WOFF file in 4 steps

You found a file that ends in .woff and your computer does not know what to do with it. That is normal. Here is the fastest way to open it.

Add your file. Click "Choose font file" in the pink box, or drag the file onto it.
Wait a second. Your browser reads the font. A small file opens almost at once.
Test the font. Click the sample text and type your own words. Move the slider to make the text bigger or smaller.
Check the details. Scroll down to see the font name, style, version and license. Below that, you will see every glyph in the file.

Want a font you can install? Click "Convert & download". You get a TTF or OTF copy of the same font. Nothing is lost in the change. The shapes, the spacing and the names all stay the same.

How to open a WOFF2 file

Want to open a WOFF2 file? It works the same way. Drop it into the box at the top of the page. This WOFF2 file viewer unpacks the file in your browser and gives you the full set of tools:

A live preview you can type into
Sample text in four sizes
The font name, style, designer and license
A grid of every glyph in the file
A button to save it as a TTF or OTF file

The first WOFF2 file you open takes a moment longer. The page loads a small WOFF2 reader the first time it needs one. After that, each file opens fast. You can open WOFF2 files online like this on any computer or phone.

What this WOFF file viewer shows you

Most people open a WOFF file to answer a simple question. What does this font look like? Which font is this? Does it have the characters I need? The tool answers all three.

A live WOFF preview

The preview box shows a full sentence in the font. Click it and type anything you like. Try your name, a headline or a price. Three quick buttons switch to the full alphabet, or to numbers and symbols. Under the preview you will see the font at 14, 20, 28 and 40 pixels. This shows how it reads as body text and as a heading.

Font information

The info panel reads the name table inside the font. You will see the font family, the style (like Regular, Bold or Light), the full name and the PostScript name. It also shows the version, the designer and the foundry when the font lists them. For the tech side, you get the glyph count, the units per em, and the ascender and descender values. You also see the file size before and after it is unpacked.

Most fonts also carry a copyright line and a license. If a license is in the file, you will see it here. This is the quickest way to learn who made a font and how you may use it.

A glyph viewer

A glyph is one drawn shape in a font. It might be a letter, a number, an accent or an icon. The glyph grid shows each one with its Unicode code, like U+0041 for a capital A. Click any glyph with a code and it is copied, so you can paste it anywhere. Big fonts have thousands of glyphs, so the grid loads them in groups. Press "Show more glyphs" to keep going.

A WOFF to TTF converter

The Convert button unpacks the web font back into a normal desktop font. A WOFF or WOFF2 file with TrueType outlines becomes a TTF. One with PostScript outlines becomes an OTF. The tool picks the right one for you.

Who uses this WOFF file opener?

People come here for many reasons. These are the most common ones.

Designers who got a font from a client's website and need to know its name before they buy it.

Web developers who want to check that a font file loads, holds the right weights and has the characters a page needs.

Students and writers who downloaded a font and want to see it before they install anything.

Anyone on a phone who needs a quick WOFF reader and has no font software at all.

Whatever brings you here, the steps are the same. Drop in the file and look.

What is a WOFF file?

WOFF stands for Web Open Font Format. It is a font file made for websites. When you visit a site with a custom font, your browser often downloads a WOFF or WOFF2 file in the background. Then it uses that file to draw the text on the page.

Inside, a WOFF file is not a new kind of font. It holds a normal TrueType or OpenType font, the same kind you would find in a TTF or OTF file. The difference is the packing. WOFF squeezes the font data so the file is smaller, which helps pages load faster. It can also hold extra notes about the font, like who made it and the license terms.

The format was created in 2009 by Jonathan Kew of Mozilla, Tal Leming and Erik van Blokland. The W3C, the group that sets web standards, made WOFF an official standard in 2012. Today every major browser supports it.

WOFF vs WOFF2: what is the difference?

WOFF2 is the newer version. It does the same job with better compression, so the files are smaller. The W3C made WOFF2 a standard in 2018. On average, a WOFF2 file is about 30% smaller than the same font as WOFF.

	WOFF	WOFF2
Standard since	2012	2018
Compression	zlib	Brotli, plus font-specific tricks
File size	Small	About 30% smaller than WOFF
Browser support	All modern browsers	All modern browsers
Install on a PC or Mac	No, convert to TTF first	No, convert to TTF first
Opens in this tool	Yes	Yes

If you build websites, use WOFF2 first. It is the smallest and every current browser can read it. Add a WOFF file as a backup only if you still need to support very old browsers. Keep TTF and OTF for your own computer and your design apps.

Why won't my computer open a WOFF file?

When you double-click a WOFF file, you might see "How do you want to open this file?" or a browser that just downloads it again. The file is not broken. Your computer simply has no app set up for it.

Desktop systems install fonts in TTF or OTF format. WOFF and WOFF2 are packed web versions, so the font tools on Windows and Mac skip them. To view WOFF files, you need something that can unpack them. A web browser can do that, which is why this site works on any device.

How to open WOFF files on Windows 10 and 11

Windows Font Viewer only opens TTF, OTF and a few older font types. It will not open a WOFF or WOFF2 file. Here is what to do instead:

Open this page in Edge, Chrome or Firefox.
Drag the WOFF file from File Explorer onto the pink box.
Look at the preview, the details and the glyphs.
To install the font, click "Convert & download" to get a TTF file.
Find the TTF in your Downloads folder. Right-click it and choose Install, or "Install for all users".

Now the font shows up in Word, Photoshop and every other app on your PC.

On Windows 7, use the newest browser that still runs on your machine. Firefox kept its Windows 7 support longer than Chrome did. If the Convert button does not work, your browser is too old for it. The preview may still work.

How to open WOFF files on a Mac

Font Book on macOS is made for TTF and OTF files, so it will not install a WOFF or WOFF2 file. Use this page in Safari, Chrome or Firefox to open the file and look inside. If you want to use the font in Pages, Keynote or Adobe apps, convert it to TTF or OTF here. Then double-click the new file and click Install in Font Book.

How to open WOFF files on Android and iPhone

Phones are where this tool helps the most. There is almost no other way to look at a WOFF file on a phone. Open this page in Chrome or Safari. Tap the pink box, then pick the file from your Files app or Downloads. The preview, info and glyphs all work on a small screen.

Keep in mind that phones do not let you install fonts across the whole system. You can view and test a font on your phone. To use it in a design, move it to a computer.

Other apps that can open WOFF files

This page is the quickest way to open .woff files, but it is not the only one. Here are other tools people use, and what each one is good for.

FontForge. A free font editor for Windows, Mac and Linux. It can open WOFF files, let you change the glyphs, and save the result as TTF or OTF. It is powerful, but it takes time to learn.

Browser developer tools. Press F12 in Chrome, Edge or Firefox on any website. The Network tab lists every font file the page loads. This is how you find WOFF files on a site.

VS Code. The editor shows a WOFF file as raw data by default. Some extensions add a font preview. For a quick look, a browser tool is simpler.

Photoshop, Illustrator and GIMP. These apps only use fonts installed on your computer. They cannot open a WOFF file directly. Convert it to TTF here, install it, and it will show up in their font lists.

How to view icons in a WOFF file

Many websites use icon fonts. Instead of letters, the glyphs are arrows, stars, carts and logos. These files often have names like icons.woff or fontawesome.woff2. Opening one in a text viewer shows nothing useful. Open it here and the glyph grid shows every icon at once.

Icon fonts usually keep their icons in a special Unicode range called the Private Use Area. It runs from U+E000 to U+F8FF. The code under each icon in the grid is the same code a web developer uses in CSS. So if you need to know which code shows the shopping cart, find the cart in the grid and read its label. Click it to copy the icon itself.

How to check the font name, weight and style

Web font files often have short or odd names like font-a7f3.woff2. The file name tells you nothing. The font itself knows its real name. Open the file and look at the info panel:

Font family is the main name, like Poppins or Open Sans.
Style tells you the weight and slant, like Regular, Bold, Light or Italic.
Full name puts both together, like Poppins Bold.

This is handy when a website loads several files from the same family. Open each one and you will know which file is the Regular and which is the Bold.

How to find WOFF files on a website

Want to know which font a website uses? You can find the files yourself in a minute.

Open the website in Chrome, Edge or Firefox.
Press F12 to open the developer tools.
Click the Network tab, then the "Font" filter.
Reload the page. The font files it loads appear in the list.
Right-click a file and open it in a new tab to save it. Then drop it into this tool.

Before you use WOFF fonts you found this way, check their license. Seeing a font on a website does not mean you are free to use it in your own work.

How to test a WOFF font before you use it

A font can look great in one headline and fail you later. A quick test now saves you trouble. Open the file here and run through this list:

Your real text. Type the actual words you plan to use, not just the sample sentence.
Special characters. Try accents, quotes, the euro sign or any symbol your project needs.
Numbers. Check that prices, dates and phone numbers look clean.
Small sizes. Look at the 14 px line. Some display fonts get hard to read when small.
Glyph count. A few hundred glyphs usually means basic Latin only. Thousands means wide language support.
License. Read the license field so you know what you are allowed to do.

Fixing common WOFF problems

"This does not look like a font file"

The file has a .woff name but something else inside. This happens a lot when you save a font from a website. The site sends back an error page instead of the font, and your browser saves it with the font name. Open the file in a text editor. If you see HTML tags, it is a web page, not a font. A real WOFF file starts with the letters wOFF. A WOFF2 file starts with wOF2.

The font shows empty boxes

The boxes mean the font does not include those characters. Many web fonts are split into small files by language. One file might hold only Latin letters. Another holds Cyrillic. Type your text and check the glyph grid. If a character is missing, look for the other files in the same family.

The converted TTF will not install

Some web fonts are cut down to the few characters one website needs. Others have damaged data. Windows may reject these as "not a valid font". Try to get the full font from the designer or from a trusted font site.

The file is too big

The tool opens fonts up to 20 MB. Almost every web font is far smaller. Large files are usually big language fonts, like complete Chinese or Japanese sets.

Is it safe to open fonts here?

Yes. Most online file tools upload your file to their server. This one does not. The page loads a small program into your browser, and your browser does all the work. Your font never leaves your device.

This matters if you work with paid fonts, client files or fonts that are not public yet. There is nothing to leak, because we never receive the file. You can test it yourself. Load this page, turn off Wi-Fi, and open a font. It still works.

A quick note on font licenses

A font is software, and most fonts come with a license. Some fonts are free for any use, like those under the SIL Open Font License. Others allow web use but not print, or need a paid license for business work. Opening and viewing a font is fine. Using it in your own website or product depends on its license. When in doubt, check the license field in the info panel or ask the designer.

Frequently asked questions

How do I open a WOFF file?

Drop it into the box at the top of this page. The font opens in your browser in about a second. You can then type your own text, see every character, and read the font details. You do not need to install anything.

How do I open a WOFF2 file?

The same way. Drop the WOFF2 file into the box. The tool unpacks it in your browser and shows the preview, font details and glyphs. You can also save it as a TTF or OTF file.

Can Windows open WOFF files?

Not on its own. Windows Font Viewer opens TTF and OTF files, but not WOFF or WOFF2. Open the file in this tool instead. If you want to install the font, convert it to TTF first, then right-click the TTF and choose Install.

Can I install a WOFF font on my computer?

Not directly. Windows and macOS install TTF and OTF fonts. Use the Convert button on this page to turn the WOFF or WOFF2 file into a TTF or OTF file. Then install that file as usual.

Is WOFF better than TTF?

For websites, yes. A WOFF file is a TTF or OTF font packed in a smaller file, so pages load faster. For your computer, TTF or OTF is better, because that is what your system and your apps can install.

Do you upload or keep my font?

No. The file is read by your own browser. It is never sent to our server, and we never see it. You can even turn off your internet after the page loads and the tool still works.

What app opens WOFF files?

Any modern web browser can read them, and this page gives you a simple way to do it. For editing, the free app FontForge can open WOFF files. Design apps like Photoshop only use installed fonts, so convert to TTF first.

Why does my WOFF font show empty boxes?

The font does not have those characters. Many web fonts are cut into small parts by language to save space. A Latin-only file will show boxes for Greek, Cyrillic or other scripts. Check the glyph list to see what the file really contains.

Is this WOFF font viewer free?

Yes. It is free to use, with no sign-up and no limit on how many files you open. The only limit is file size, which is 20 MB per font.

Open your WOFF file now

Free, private and quick. Scroll back up and drop in any WOFF, WOFF2, TTF or OTF font.

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