Validation · not in the store yet
Local-first · no cloud required

Font Map by Aonau

Chrome removed Force Custom Fonts, the little tool that let you say “use Arial wherever a site asked for Helvetica Neue” — or unify messy CJK web fonts — without restyling the whole page. Family-level changers and site restylers exist. A small named-swap tool also exists, but is easy to miss. This page asks one thing: do you still need named Font A → Font B rules that leave icon fonts alone, and is that worth building?

Take the 60-second survey → Founding supporter — $1

On type, quietly

This paragraph asked for Helvetica Neue. The rule above swapped only that name — the heading, the body, and nothing else.

icons stay intact

2 named rules · icon fonts spared

Illustrative mock — not a screenshot of a shipped product.

What we’re aiming for

Named substitution: Font A → Font B, on every site. Other fonts stay as the site designed them.
Icon- and symbol-font safety as a first-class setting — the original often turned Font Awesome and similar icon fonts into squares. Optional per-site exclusions.
Local only. Tight permissions (storage). Uses fonts already on your computer. No account, no font CDN, no cloud.

How it compares (honest)

Tool	Fit	Common friction
Force Custom Fonts (disabled)	Named Font A → Font B	Gone from current Chrome; often broke icon fonts
Font Swap	Same named-swap job, already on Manifest V3	Small and easy to miss; mixed “does it work?” reports
Fontonic	Serif / sans / mono with local fonts; tries to spare icons	Changes a family, not “Helvetica Neue → Arial”
Advanced Font Changer / Stylus	Restyle a site or the whole page	Heavier than a short list of named rules; some load fonts from the web
Font Map by Aonau (validating)	Named rules + icon-font safety, local — if built	Doesn’t exist yet — we ask first

Kill criteria (we will stop)

If most people say Fontonic, Font Swap, or Stylus already does the job, this line stops. This page exists to find out — not to force a product.

60-second survey

What do you use to control website fonts today? Does it still hurt? If a tiny local named-font mapper existed, what’s the one thing you’d want? Email if you’d try a local alpha (optional)

Submissions go to our scout inbox via FormSubmit (free). No account required on your side. The first submission needs one confirmation click in that inbox.

Questions

Is this a remake of Force Custom Fonts?

No. Font Map by Aonau would be an independent tool with its own name and interface. We would not copy the original’s name, icons, or code. This page is only asking whether the job is still missing.

Why not just use Font Swap or Fontonic?

You might already be fine with them — Font Swap does named substitution, and Fontonic changes font families while trying to spare icons. If most of you say that’s enough, we stop. We only build if named rules plus icon-font safety still feel missing.