CUSTRA | Auto Screenshot Tool logoCUSTRA | Auto Screenshot Tool
Local-first. Designed for meetings & classes.

Stop screenshotting mid-meeting.
Let CUSTRA | Auto Screenshot Tool capture the key frames.

Select a region inside Zoom / Teams / Tencent Meeting / live streams (slides, subtitles, chat). CUSTRA | Auto Screenshot Tool samples every second, automatically stores changes — with an optional loop capture as a safety net.

ZoomTeamsTencent MeetingOnline coursesLive streamsWeb BrowserLocal video player

No more busy taking screenshots

In meetings and courses, the pain isn’t “lack of content” — it’s missing the moment. When you stop to screenshot, you stop to listen. CUSTRA | Auto Screenshot Tool captures the key frames so you can stay engaged.

Fewer junk screenshots
Save only the important changes.
Faster review
A timeline of images is easier to skim than a long recording.
Audio sync
Record audio while capturing the important moments.
Local privacy
No account, no upload, your files stay yours.
Before vs after

What changes with CUSTRA | Auto Screenshot Tool

Side‑by‑side, the difference is simple: fewer interruptions while listening, and cleaner outputs when you review.

Without CUSTRA | Auto Screenshot Tool
  • ❌ Pause to screenshot
  • ❌ Miss a sentence / a step
  • ❌ Hundreds of unsorted images
  • ❌ Hard to find “that slide” later
With CUSTRA | Auto Screenshot Tool
  • ✅ Select once, keep listening
  • ✅ Only key changes saved
  • ✅ Clean, time‑stamped output folder
  • ✅ Easier to align with your notes

No upload, No Saas

CUSTRA | Auto Screenshot Tool runs locally and saves outputs to your computer. No account required. No upload. Your files stay in your control.No subscription, one-time purchase.

Who it’s for

Students
Capture key slide pages and worked examples from online courses.
Professionals
Save the important moments from reviews, trainings, and demos.
Creators
Collect key frames from live sessions for editing and notes.
TAs & instructors
Quickly locate “that slide” when answering questions later.
Researchers
Organize screenshots into a clean timeline for analysis.
Remote teams
Keep a lightweight visual record without heavy screen recordings.

Feature highlights

Minimal workflow
Start → select region → stop. Results are ready in a folder.
Change-trigger saving
Better signal-to-noise than manual screenshots or raw screen recording.
Optional loop fallback
Save every N seconds if you want a safety net for subtle changes.
Timestamped outputs
Easy to align with your notes and recall the moment later.
Local-first privacy
No account required. Outputs stay on your computer by default.
Windows system audio
Optional audio capture to replay the important parts.

🙋 FAQ

Common questions about CUSTRA | Auto Screenshot Tool.

💻 Does it support macOS and Linux?
The current demo is Windows-only. We may add macOS and Linux support later.
🎬 Is this screen recording?
No. It samples every second and saves key change frames as PNGs. You can also turn on loop capture as a fallback.
❓ Why not just record the screen?
For most meetings and classes you only need the key slides and switches, not a long video. Key frames are easier to search and better for notes.
📁 Where are files saved?
Locally: output/<task>/images/*.png. If you enable audio (Windows), you get output/<task>/audio/audio.wav.
☁️ Does it upload to the cloud?
No. It runs and saves everything on your machine.

Ready to stop missing key slides?

Join the waitlist to get early access and help shape the beta.

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