Designers need a way to test font changes (font, size, spacing) on any live website without opening DevTools or editing CSS.
Target User
Web designers and front-end developers building client websites
Product Idea
Browser extension (Chrome/Firefox) that allows users to save and test multiple font/style combinations (size, spacing, weight) on any live website page, with persistence across sessions.
Evidence
“Hey Product Hunt, I built Tinkerfont because I got tired of guessing what fonts would look like before changing code or design. So I made something that lets you open a website, swap fonts instantly, +”
https://www.producthunt.com/products/tinkerfont?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+11+%28ID%3A+280766%29“The live-on-any-site angle is the part I'd actually use, testing type before committing it in the real CSS. Does it let me save a set of font plus size/spacing tweaks to reapply on the next visit, or +”
https://www.producthunt.com/products/tinkerfont?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+11+%28ID%3A+280766%29
Why this opportunity matters
This opportunity surfaced from multi where Web designers and front-end developers building client websites are actively describing the problem in their own words. We classified the demand intensity as high — meaning users are not just complaining, they are openly looking for paid solutions and willing to switch tools to find one. When users self-select to post a problem on a public platform like multi, they are usually already trying to solve it — which makes them strong candidates for the right paid alternative.
How to validate this before you build
Before writing a single line of code, three lightweight steps will tell you whether this opportunity is worth pursuing:
- Read the original conversation. The evidence links above lead to the exact threads where users described this problem in their own words. Read every comment — what people argue about in the replies often matters more than the original post.
- Talk to five real users. Find five people who match the target user description above and ask how they handle this today. You are looking for two signals: a consistent workaround they hate, and a willingness to pay for something better. If both show up in three of five conversations, the demand is real.
- Test willingness to pay before building. Put up a one-page landing site describing the proposed product, with a deposit or pre-order checkout. If even a small fraction of traffic converts to a real payment, you have validated more than most products that ship to production.
Gap analysis & monetisation locked
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