Answers, without the fine print.

Yes. Free includes speed up to 3x, volume boost up to 2x, 3 templates, YouTube captions, and keyboard shortcuts. Pro unlocks 16x speed, 6x volume, subtitle search, and more.

Firefox is available now on Mozilla Add-ons. Chrome Web Store listing is coming soon — join the waitlist to get notified.

Yes — any site with an HTML5 video player. Save per-domain presets so Udemy can stay at 1.75x while YouTube stays at 1.25x.

Install UVE, open a page with video, and choose a speed preset in the Controls tab. You can also use A to slow down, D to speed up, and S to reset. Free supports up to 3x speed and Pro supports up to 16x.

Yes. UVE supports playback from 0.1x, which is useful for language learning, tutorials, music practice, and detailed demonstrations.

Yes. UVE uses Web Audio to boost quiet HTML5 video up to 2x in Free and up to 6x in Pro. Increase volume gradually to avoid clipping and protect your hearing.

UVE can use available YouTube captions, search OpenSubtitles with Pro, or load a local .vtt or .srt subtitle file. Subtitle controls are available from the Subtitles tab.

Yes. Per-site presets can remember different playback settings for each domain, such as 1.75x for Udemy and 1.25x for YouTube.

Buy once on our pricing page. Lemon Squeezy emails your license key. Open UVE → Settings → Activate license. See the activation guide.

Pro Student is €17 one-time (30% off) with the same features as Pro Lifetime. It is offered on an honor policy for currently enrolled students.

Handled per Lemon Squeezy buyer policy. Email support@systemaweb.com if activation does not work — we respond within 1–2 business days.

Preferences stay in browser storage on your device. We do not sell data or track browsing history. Read the full privacy policy.

UVE changes playback locally in your browser. It does not upload the videos you watch or collect your browsing history. Preferences are stored in browser extension storage on your device.

Start video playback, refresh the page, and reopen UVE. Some protected, embedded, or non-HTML5 players may limit browser extension controls. Contact support with the website URL if detection still fails.