Free tool to mark points and polygon regions
Details
- External ID
- 48043002
- Source
- HN
- Company
- —
- Product
- Free tool to mark points and polygon regions
- Website domain
- tack.pics
- Launched
- May 6, 2026
- Cohort
- —
- Upvotes
- 21
- Upvotes percentile
- 0.747172859450727
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
For a game I'm developing I needed an easy way to create hotspot areas on images. So I hacked together a small tool to do so and before I knew it, I had created an entire app :-)It allows you to generate JSON or YAML from the coordinates you tack on the image. tack runs entirely in your browser, there is no server side component to it, so good in terms of privacy.Hope this is helpful.
Enrichment
- Theme
- niche developer utilities and toolchains
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- tool for marking points and polygon regions
- Manually corrected
- False
Could you build this?
Yes This is a client-side HTML5 Canvas PWA that lets users plot Bézier curves/polygons and export JSON/YAML, easily built with modern web frameworks and AI assistance.
Discussion
7 comments analyzed.
Competitors mentioned: GPT-5.5 in Copilot CLI, tape measure and manual math
Concerns raised: App doesn't work well on mobile, GitHub charges per request instead of per token
Feature requests: Mobile app support
Competitors
Other products that read as similar to this one — 30 launches clear the similarity bar, closest 8 shown.
Attention rank: #5 of 31 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 105 days after the earliest competitor.
- Placeholder image generator · ph · 2026-09-07 · 3 upvotes · similarity 0.42
- placebound.app · ph · 2026-09-19 · 1 upvotes · similarity 0.39
- GeoTag Image Tool: 100% Free · ph · 2026-09-30 · 1 upvotes · similarity 0.38
- NormalMap · ph · 2026-09-14 · 1 upvotes · similarity 0.37
- Hot Spot – Figma Plugin · ph · 2026-09-29 · 2 upvotes · similarity 0.34
- Arnis · ph · 2026-09-19 · 1 upvotes · similarity 0.33
- mapthis — Make a place yours · ph · 2026-09-08 · 1 upvotes · similarity 0.33
- DevUtilityKits · ph · 2026-09-24 · 1 upvotes · similarity 0.33
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.