Screen Recorder Chrome Extension: No Watermark, No Account

SuperchargeCapture records the tab straight from the browser and leaves the file on your machine. It is free with no paid tier, and there’s no account to create.

It’s built for the common job of capturing something happening inside a tab. You pick the source, set your audio, and the footage is written locally in small chunks as you go, so even a crash keeps most of the take.

What Screen Recording Does

Screen recording ships in the SuperchargeCapture extension, which is free with no paid tier. It captures three sources: the current tab, the whole window, or the desktop screen, and writes them to a file that stays on your device. Recording the tab is the common case.

Choosing This tab uses Chrome’s tabCapture API to record the active tab directly. It skips the operating-system screen-share dialog, so there is no scrolling through a list of windows to find the right one. The Window and Screen sources use getDisplayMedia when you need them.

Setup in Three Steps

1. Install SuperchargeCapture from the Chrome Web Store. Screen recording is in the free core, so there is nothing extra to add.
2. Open the toolbar button and choose the Record tab. The default source is the current tab; switch to Window or Screen when you need more.
3. Set your audio and start recording. A countdown (Off, 3 seconds, or 5 seconds) gives you a beat before the take begins.

What It Controls

On the timeline, each clip can be slowed or sped up between 0.5x and 2x, and a trim-silence tool removes quiet stretches. Exports come out as WebM, MP4 (where the browser can encode it), or GIF, with GIF capped at 120 seconds.

The microphone has a device picker so you choose the right input, and a live level meter shows your input moving before you record, so you can confirm the mic is capturing.

Crash Safety and the Limits

Because it writes in local chunks, a crash loses at most about a second of footage rather than the whole take. There’s no imposed recording time limit and no watermark; available storage still limits how long a recording can run.

The limits are real. Capture is blocked on Chrome’s own pages (chrome://, edge://, and about: URLs) and on the Chrome Web Store, and nothing is uploaded on its own. The only way a clip leaves the device is the optional share-to-Drive button, which uploads to your own Google Drive only when you click it.

Permissions, Privacy and Edge

The extension doesn’t inject anything into pages until you start a capture, and it has no always-on content script. It asks for activeTab, storage, tabs, tabCapture, offscreen, scripting, unlimitedStorage, and identity permissions. The store build ships with no host permissions, so it has no access to page contents by default. “Record across sites” is an opt-in that adds the all-URLs host permission only when you turn it on.

The extension sends no telemetry. The only data path off the machine is the optional share of your own recording to your Google Drive, which you start. Uninstalling opens a feedback page on superchargebrowser.com that carries no recording data.

Questions? Reach out at support@superchargebrowser.com.