Add to ChromeHow to change the font in Claude
Updated
Short answer
On claude.ai, click your initials in the lower left, open Settings → Appearance and choose a Chat font: Default, Match System or Dyslexic Friendly. For text size, use browser zoom. For other typefaces, such as serif, monospace, pixel or typewriter, use an extension like ChatTheme.
Change the chat font in Claude's settings
- 1
Open Settings
Click your initials or name in the lower-left corner of claude.ai and choose Settings.
- 2
Open Appearance
Find the Chat font option.
- 3
Choose a font
Pick Default, Match System (your operating system's font) or Dyslexic Friendly.
Make the text bigger or smaller
Claude has no font size setting. Use browser zoom: Ctrl + / Ctrl − on Windows and Linux, Cmd + / Cmd − on a Mac. Chrome remembers it for claude.ai.
Use more fonts
ChatTheme sets the font as part of each theme and lets you change it in the Customize tab: serif, monospace, VT323 terminal, pixel, ChicagoFLF (classic Mac), Courier Prime typewriter, Tahoma-style and more. Fonts are bundled in the extension, nothing loads from the web, and text contrast stays at 4.5:1 or better.
Try ChatTheme
Free for ChatGPT, Claude and Gemini. Only the look changes.