Rellix
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§ 00Product overview

Built to record, edit,
and ship — without the SaaS bill.

A screen recorder, video editor, and walkthrough studio. Everything runs in your browser. Everything saves to your disk. One HTML file ships the whole thing.

4
Capture modes
60fps
Studio quality
1 file
Walkthrough export
$0
To get started
§ 01Capture

Record anything. Zero upload.

Tab, window, screen, or step-by-step walkthrough mode. Every frame is processed locally by your browser. Nothing leaves your machine until you choose to export it.

4capture modes
60fpsStudio preset
4Kviewport capture
Tab capture
Captures the active browser tab. Automatically hides scrollbars for cleaner recordings.
Free
Screen & window capture
Full display or a specific application window. Works on any OS.
Free
Walkthrough mode
Step-by-step screenshot capture. Every interaction becomes a slide in your guided tour.
Free
Studio & 4K presets
60fps at maximum bitrate, or a forced 4K viewport regardless of your display resolution.
Premium
capture mode demo
§ 02Edit

A full studio. No render queue.

The editor runs entirely in the extension. Zoom, annotate, overlay, trim — all processed in your browser. Hit export and it's done in seconds, not minutes.

GIFsoverlays supported
Browser chromeSafari / Chrome / FF
Webcam PiPface-cam layer
Zoom segments
Auto-generated from click telemetry, or draw your own. Set ease duration, max depth, and curve per segment.
Free
GIF overlays
Drop in GIFs from Giphy or Klipy using your own API key, or upload your own. Enters and exits with animation.
Pro
Faux browser chrome
Wrap your recording in a Safari, Chrome, Edge, or Firefox toolbar. The URL bar is editable.
Pro
Webcam PiP + microphone
Add your face-cam as a PiP layer. Resize, reposition, add border and shadow. Mic input with denoise.
Pro
Hide / blur segments
Draw a region over any part of your recording and it's redacted on export. Useful for sensitive UI.
Pro
Magnifier lens
A floating lens layer that follows a path and zooms into a region. Set size, zoom level, border, and shadow.
Premium
editor walkthrough GIF
§ 03Walkthrough

Guided tours. One HTML file.

Build step-by-step product walkthroughs with captions and AI-generated narration. Export as a single self-contained file that works offline and embeds anywhere with no dependencies.

Self-containedno embed script
Offlineno CDN needed
BYOK AInarration generation
Step editor
Reorder, insert, crop, duplicate. Add text overlays and tooltip placement per step.
Free
AI narration
Connect your Anthropic or OpenAI key. Generate and regenerate narration copy per step — your key, your cost, no middleman.
Pro
Self-contained HTML export
One file. Screenshots, styles, and logic baked in with data URIs. No external requests. Drop it anywhere.
Free
Embed quality tiers
Compact (free), Standard (Pro), or Source-resolution (Premium). Tune the trade-off between file size and image quality.
Tiered
walkthrough embed demo
§ 04Export

Your files. Your disk. Forever.

Export at 720p, 1080p, or 4K. WebM or MP4. Still frames with transparency. Everything saves to local disk. If we shut down tomorrow your exports still play.

4Kmax resolution
60fpsmax frame rate
PNG+αtransparency support
720p WebM · 30fps
The baseline. Plenty for most product demos, help docs, and social posts.
Free
1080p · 60fps · Studio encode
Smooth, high-bitrate exports for product launches and marketing assets.
Pro
PNG stills with transparency
Export any frame as a full-resolution PNG with a transparent background. Useful for product shots and slides.
Pro
4K · 60fps
Maximum quality for large-format presentations, retina displays, and future-proofing your library.
Premium
export quality comparison
§ 00.5

Local-first.
Not as a buzzword.

Your disk, not ours

Recordings save to your browser's OPFS — a sandboxed local file system. Nothing is uploaded unless you choose to share it.

Offline-capable exports

Every walkthrough exports as one HTML file. No CDN, no embed script, no "powered by" badge. Open it in any browser, forever.

No expiry date

Cancel your plan tomorrow. Your extension keeps working. Your files keep opening. The software lives on your machine.

No phone home

The extension makes no outbound requests during recording or export. Your API keys (AI, GIFs) go directly to those providers — never via us.

Thirty seconds to install.
Zero dollars to start.

Free tier. No account. Runs offline. Upgrade when you need Studio quality or GIF overlays — not before.

Add to Chrome — freeSee pricing →

Also on Firefox