A Windows tray app to capture, annotate, record and edit your screen, with on-device redaction of sensitive info and uploads to your own cloud storage.
People who document or share their screen juggle several tools. The built-in Windows capture is fast but barely annotates, and recording, scrolling capture, redaction and step guides each tend to be a separate app. Some destinations, like AI coding terminals, accept a file path but not a pasted image.
One Rust executable built on Windows' own engines for video, audio, text recognition and encryption. Redaction runs on the device, uploads go only to the user's own storage, and licence keys are checked offline, so there is no server or account.
The whole desktop is frozen before selection, so menus, tooltips and hover states are captured as they looked, with a magnifier for exact edges.
Text recognition and face detection find emails, keys, card numbers, phone numbers, IPs and faces, and blur them without uploading anything.
MP4 recording with system audio and mic, a webcam bubble, and click and shortcut overlays. The controls never appear in the video.
Trim, cut, speed up, zoom in and add callouts with a live preview, then export MP4 or an optimised GIF.
Scrolls a chosen pane and stitches frames into one image, ignoring scrollbars and keeping sticky headers and footers once.
Find screenshots by the text inside them, and turn captures into step-by-step guides exported to Markdown or PDF.
The app lives in the tray. A hotkey freezes the screen for a region, window or full-screen capture, and an editor adds annotations, one-click redaction and a beautified background, then copies the image or its file path, or uploads it. Another hotkey records the screen with audio and a webcam, and a built-in editor trims and exports MP4 or GIF.
Architecture · Architecture
Capture and redact · User Flow
Recording pipeline · Sequence
Licence and Drive connection · Auth Flow
Release pipeline · Infrastructure
Local data model · Data Model
Chose Media Foundation, WASAPI, the built-in OCR and face detection, and DPAPI over Shipping FFmpeg, an OCR engine or ML models
A small single executable with no model downloads, and text recognition and redaction never leave the machine.
Chose One capture of the whole desktop, shown dimmed, with stills cropped from it over A live overlay that captures after selection
Menus, tooltips and hover states disappear when focus changes. Freezing first captures them exactly as they looked.
Chose GDI for the capture overlay and live chrome, egui for the editor, settings and video editor over One UI toolkit for everything
Window transparency in the UI toolkit had backend-dependent bugs, and the overlay is simple enough that plain GDI is more reliable and less code.
Chose Ed25519-signed keys verified against an embedded public key over A hosted activation server with device limits
A one-time-purchase tool with no server to run. The trade-off, no device limits, is written in the code and kept under review.
Chose The tray window only queues commands, and the main loop runs them one at a time over Concurrent handlers per hotkey
Overlays, the editor and recording each run nested message loops, so queueing keeps the flow sequential and free of re-entrancy bugs.
Phase 1
Phase 2
Phase 3
Phase 4
Phase 5
6
Sensitive-data categories redacted on device
Emails, API keys and tokens, card numbers with a Luhn check, phone numbers, IP addresses and faces.
1 exe
No runtime, no server, no account
A single Rust executable using Windows' own video, audio and text-recognition engines.
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