
Threelane
Open-source screen + multi-cam recorder & editor
What it does
Recording and editing multi-cam demos is fiddly, and every tool that makes it smooth is paid. Threelane is the open-source alternative: screen + webcam + your phone as a second camera over WiFi, multi-track editor with zoom lanes that follow your cursor and trim lanes that skip bad takes, portrait/landscape/square layouts, export to MP4. Runs locally no cloud, no account for Mac · Windows · Linux. Free forever.
Does a similar job
all alternatives →
Screen Studio 3.02025 · screen.studio · ▲1,833Beautiful screen recordings with instant shareable links
Screen & Webcam Recorder by Type Studio2021 · ▲457Record, edit and share your recording in a seamless workflow




More dev tools this month
the category →



OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 5d ago · opentrailpaper.com

Lettertrace▲375Track your AI visibility for free (using your own API keys!)
Dev tools · 28d ago · lettertrace.com
Source: Product Hunt launch ↗
Launched alongside, May 2026
the whole month →

Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai



Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com

🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md
Dev tools · May 2026 · github.com