Test fonts for Vietnamese
Example on a restaurant sign
About this tool
Drop in a font file to check whether it covers Vietnamese, whether accents get clipped, and what usage rights the file declares.
Use it when
- Unsure a font has full Vietnamese accents
- Accented letters print in a different style
- Need to know if a font may be used commercially
- Your file stays on your device
- Checks all 134 Vietnamese characters
- No sign-up
Vietnamese breaks at the accents first
Missing characters mean mixed fonts
If a font lacks ơ, ư or accented letters, the computer substitutes another font. One letter in a word jumps to a different style and looks like a printing error.
Stacked accents get clipped
Capitals with two marks, such as Ấ and Ổ, rise above the font's line box. Word on Windows clips the excess; slides and web pages sometimes overlap the line above.
Free fonts are not always usable
Many fonts allow personal use but forbid brand use or embedding in files. Using them without the right sooner or later means replacing everything.
What people often ask
Does this font set Vietnamese accents correctly?
A font supports Vietnamese when it has all 134 accented letters and the marks do not collide with letters, especially double-marked ones such as Ấ, Ổ, Ữ. Drop in a TTF, OTF or WOFF file and the tool lists missing letters, marks clipped at the top of the line, minimum line spacing and the license the file declares.
Is my font file sent anywhere?
No. The file is read in your browser and is not uploaded to any server.
Why can't it read WOFF2 files?
WOFF2 is a compressed format made for the web. Use the original TTF or OTF from the font vendor, or a WOFF file.
Does the rights result replace the license?
No. The tool only reads the declaration inside the file. The real rights are in the license you received when buying or downloading the font; read the terms for brand, print and web use carefully.