leftopen
See what your tools left running on localhost. Native macOS menu-bar app and CLI.
Details
- External ID
- 1372509814
- Source
- GITHUB
- Company
- —
- Product
- leftopen
- Website domain
- github.io
- Launched
- Sept. 16, 2026
- Cohort
- —
- Upvotes
- 38
- Upvotes percentile
- 0.7717140661029976
- Tags
- —
- Fetched at
- Sept. 20, 2026, 5:44 p.m.
- Updated at
- Sept. 20, 2026, 5:44 p.m.
Enrichment
- Theme
- developer utilities and gaming mods
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- menu-bar app and cli to monitor open localhost ports
- Manually corrected
- False
Could you build this?
Yes It is a native menu-bar app and CLI that inspects open network ports on localhost using standard OS utilities (like lsof/procfs) and displays them in a clean UI.
Competitors
Other products that read as similar to this one — 274 launches clear the similarity bar, closest 8 shown.
Attention rank: #72 of 275 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 268 days after the earliest competitor.
- MacUp · hn · 2026-09-27 · 6 upvotes · similarity 0.61
- portkill · github · 2026-09-25 · 64 upvotes · similarity 0.56
- macOS menu-bar manager for SSH port forwards · hn · 2026-07-23 · 45 upvotes · similarity 0.56
- Termini · hn · 2026-05-15 · 6 upvotes · similarity 0.52
- Port Tools · ph · 2026-09-10 · 1 upvotes · similarity 0.51
- RedialMenu · ph · 2026-09-17 · 2 upvotes · similarity 0.49
- DevSweep · github · 2026-09-13 · 11 upvotes · similarity 0.49
- homebrew-tools-macOS · github · 2026-09-25 · 119 upvotes · similarity 0.48
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.