Chrome, Edge, Opera, Brave, Arc, Yandex Browser
Ten extensions that replace online services — without sending your files to anyone
Download video, capture a whole page, merge and compress PDFs, cull photos, generate QR codes, tame Excel spreadsheets. Everything runs inside the browser: no servers, no accounts, no analytics.
All extensions
Each one solves a single job and carries no baggage. Install them separately — the set is not a bundle.
HyperVideo
Finds every video a page loads, shows its real size and duration, and saves it in the quality you pick. Handles HLS (m3u8), DASH (mpd), MP4 and screen recording with audio.
Learn more →HyperScreen
Captures an entire web page automatically, including modern apps where an inner container scrolls instead of the page. Opens an editor right away: crop, brush, eraser, export to PNG, JPG or PDF.
Learn more →HyperPDF
Everything you would normally use an online converter for — without sending the document to anyone. Files are processed in the tab's memory and are gone when you close it.
Learn more →HyperCompress
Two modes: fit under a size limit (20 MB by default) or squeeze as hard as possible. Everything runs offline, inside the browser.
Learn more →HyperQR-code
Turns the current tab's URL into a good-looking QR code: black, bright blue, inverted white or holographic. Drop in a logo and the code flows around it.
Learn more →HyperPhoto
Large previews, keyboard culling, full-screen review with EXIF, batch renaming with numbering, and compression to a size you set. Photos never leave your computer.
Learn more →HyperContacts
Opens your .xlsx as a clean table with search, sections and cards, and writes edits straight back into the same file — no duplicates, no exports.
Learn more →HyperKPI
Opens an .xlsx and turns rows into cards: the target on the left, a full-screen answer field on the right. Formatting, file structure and formulas are preserved.
Learn more →HyperAlerts
Shows an animated cat over the page and starts a break timer, instead of a notification you dismiss by reflex and forget about.
Learn more →HyperCall Coming soon
A simulated incoming call for Zoom and TrueConf — an exit from a meeting that will not end.
Why local matters
Files never leave your computer
No document, screenshot or photo is uploaded anywhere. Processing happens in the tab's memory, and closing the tab clears it.
No accounts, no subscriptions
Nothing to register and nothing to pay for. The extension works the moment it is installed.
No analytics, no trackers
The extensions collect no statistics, show no ads and make no calls to outside servers.
Works without an internet connection
Compression, PDF editing and Excel work need no network — which matters on the move and inside closed networks.
How to install
Open the extension page
Click “Add to Chrome” — it opens the official Chrome Web Store listing.
Confirm the install
Chrome shows the permissions. Press “Add extension” to confirm.
Pin the icon
Click the puzzle icon next to the address bar and pin the extension so it stays visible.
Open it
Click the icon. No account, no payment, no configuration needed.
Edge, Opera, Brave, Arc and Yandex Browser install it the same way — they are Chromium-based and open the Chrome Web Store directly. If your browser asks for extra confirmation, choose “Install anyway”.
About the project
These extensions grew out of practice: each one exists because a task kept coming back every day, while the available answers either required uploading files to the internet, cost money, or did far too much. They share one principle — data never leaves the user's computer. All of them are published in the official Chrome Web Store, install in one click, and run in any Chromium browser.
Frequently asked questions
What is Umnybrauzer?
A set of ten free extensions for Chromium-based browsers — Chrome, Edge, Opera, Brave, Arc and Yandex Browser. They cover the everyday jobs people normally use online services for: downloading video, full-page screenshots, editing and compressing PDFs, working with Excel spreadsheets, generating QR codes, culling photos and setting reminders. The difference is that all processing happens locally, inside the browser.
Are the extensions free?
Yes, all ten are completely free: no subscriptions, no in-app purchases, no limits and no watermarks.
Do they work in Edge, Brave, Opera or Yandex Browser?
Yes. Those browsers are Chromium-based and install extensions straight from the Chrome Web Store, exactly as Chrome does.
Where do my files and data go?
Nowhere. There are no servers, accounts, analytics or trackers. Documents, images and spreadsheets are processed in browser memory and stay on your computer.
Do I have to install all of them?
No. Each works on its own — install only the one that solves your problem.
Is an internet connection required?
For downloading video, naturally. Everything else — compression, PDF, Excel, photos, QR codes, reminders — works offline.
Who makes these extensions?
They are built by a single developer, Dmitri Ignatiev, and published in the official Chrome Web Store, where they pass its review.
How do I uninstall one?
Right-click its icon next to the address bar and choose “Remove from Chrome”. No leftover files and no accounts to close.
Start with whatever you need right now
Installing takes under a minute; removing takes one click.
HyperVideo
Finds every video a page loads, shows its real size and duration, and saves it in the quality you pick. Handles HLS (m3u8), DASH (mpd), MP4 and screen recording with audio.
Learn more →HyperScreen
Captures an entire web page automatically, including modern apps where an inner container scrolls instead of the page. Opens an editor right away: crop, brush, eraser, export to PNG, JPG or PDF.
Learn more →HyperPDF
Everything you would normally use an online converter for — without sending the document to anyone. Files are processed in the tab's memory and are gone when you close it.
Learn more →