Ctrl+F for everything you save · Windows · 100% offline
Screenshots, screen recordings, downloads — Eureka reads the text inside them and finds the right file the instant you type. No cloud. No account. No subscription.
under a minute · this is the actual app
one-time $7 · installer downloads instantly · key emailed within 24h
PNGJPGWEBPMP4MKVMOVWEBMPDFZIP+ every other file, searchable by name & date
Sound familiar?
The pain
You need a screenshot from three weeks ago. Your folder is 400 thumbnails named "Screenshot (214).png" — and the one you need could be any of them.
With Eureka
Type any words you remember seeing — "invoice", the error message, a name. The right file appears, because Eureka reads the text inside every capture.
The pain
You take a screenshot to send someone. The little preview vanishes before you can grab it — and now you're digging through folders in the middle of a conversation.
With Eureka
Every new save pops up in a corner card, and your last 7 captures sit on a floating shelf above any app. Open it or its folder in one click. Done.
The pain
That error flashed on screen somewhere in a 40-minute screen recording. Your only option: scrub the timeline and squint.
With Eureka
Type the error. Eureka reads recordings frame by frame and shows the exact second it appeared — click the timestamp, watch that moment.
The one thing competitors can't do: Eureka indexes what you already have — every screenshot, recording and download, from any tool, months back. Nothing to change about how you work.
How it works
Screenshots, OBS recordings, Downloads, Desktop — Eureka auto-detects the usual suspects and watches whatever you add.
Offline OCR digests your backlog in the background — throttled so your PC stays fast. And every new file you save — screenshot, recording or download — pops up in a corner card the moment it lands: open it or its folder in one click.
Hit Ctrl+Shift+F anywhere. "invoice", "wifi password", half an error message — the file appears as you type.
Privacy
Screenshots and recordings are the most private files you own — passwords, payments, DMs, half-written ideas. So Eureka is built like it's radioactive:
Turn Wi-Fi off — everything still works. The OCR engine and its language data ship inside the app.
We can't see your data, your searches, or even how often you open the app. There is no server to send it to.
Everything lives in a single SQLite database in your user folder. Delete it and it's gone. That's the whole story.
No constant screen capture, no background recording. Eureka only reads the files that already exist in folders you chose.
Pricing
one-time · not per month · not per year
one-time $7 · installer downloads instantly · Wi-Fi-off ready
After you buy, open Eureka and reply to your receipt with the Device ID it shows. You'll receive your license key by email — from a personal @gmail.com address — within 24 hours. One key unlocks one computer.
Questions? Reply to your receipt — a human answers.
macOS
The Mac build is next if enough hands go up. Leave your email — you'll hear exactly once, when it ships.
FAQ
Screenotate only OCRs screenshots you take through its own hotkey, from the day you install it. Eureka indexes the hundreds of files you already have, from any tool — Win+PrtScn, Snipping Tool, ShareX, OBS — retroactively. And it does videos and downloads, not just screenshots.
Recall continuously photographs your screen, needs Copilot+ hardware, and made everyone nervous for good reason. Eureka is the private version of the idea: it never captures anything — it only reads files that already exist, in folders you explicitly picked, fully offline.
Those copy text out of one image you're already looking at. Eureka answers the opposite question: which of my 1,400 files has the text I remember?
Yes — the OCR engine and English language model ship inside the installer. The app makes zero network requests. Try it with Wi-Fi off; we do.
PNG / JPG / WebP get full text recognition. Screen recordings (MP4, MKV, MOV, WebM…) are read frame by frame, so "find the recording where this error appeared" works too — results show the exact second the text was on screen, and clicking the timestamp plays that moment right inside Eureka. Everything else in your watched folders (PDFs, zips, documents) is findable by filename and date.
Privacy Policy · Last updated July 7, 2026
Eureka indexes files on your own computer. It makes zero network requests — the OCR engine and its language data ship inside the installer, and it works with Wi-Fi off. There is no account, no telemetry, no analytics: we cannot see your files, your searches, or even whether you open the app. Everything it reads is stored in a single local SQLite database in your Windows user folder — delete it and it's gone. Your license is verified locally with an offline signature; the Device ID shown in the app is computed on your machine and is only ever transmitted by you, by email, when you request a key.
Licensing records — when you email us your Device ID, we keep your email address, the Device ID, and the key we issued, so we can re-send it or move it to a new PC. macOS waitlist — if you submit the form, your email is stored by Formspree and used exactly once, to tell you when the Mac build ships. Support email — kept so we can help you. We never sell, rent, or share any of it.
Purchases go through Gumroad, which processes your payment and gives us only your email and order info — we never see your card number. See the Gumroad privacy policy.
No analytics, no tracking cookies. The only thing stored in your browser is your light/dark theme choice (localStorage, never sent anywhere). Fonts load from Google Fonts, which receives your IP as part of serving them.
Email samyakbansal67@gmail.com any time to see, correct, or delete the data we hold (your waitlist entry or licensing record). Deleting the licensing record means we can no longer re-issue a lost key.
Terms of Service · Last updated July 7, 2026
Eureka is a Windows desktop app that indexes and searches files on your own computer, sold as a one-time purchase through Gumroad — no subscription. Your purchase includes all updates in the 1.x line.
The installer downloads instantly from Gumroad. On first run, Eureka shows a Device ID; reply to your receipt with it and your key is emailed to you, normally within 24 hours. Keys are device-locked — one key unlocks one computer. New PC or fresh Windows install? Email us and we'll re-issue your key for the new Device ID at no charge, within reason (this is for genuine replacements, not running several machines on one purchase). Lost your key? Email us from your purchase address and we'll re-send it. You may not share, publish, resell, sublicense, or circumvent license verification.
Payment is processed by Gumroad, which may add local taxes (VAT/GST) at checkout. Because the software is delivered instantly at a small one-time price, all sales are final — but if Eureka genuinely doesn't work on your machine, reply to your receipt and a human will work with you to fix it.
Eureka is provided "as is", without warranty of any kind. We don't guarantee it will be error-free or that OCR reads every file perfectly. To the maximum extent permitted by law, total liability for any claim is limited to the amount you paid; we're not liable for indirect or consequential damages, including loss of data — please keep backups. Nothing here limits rights you have under mandatory consumer-protection law in your country.
Questions, lost keys, new-PC transfers: samyakbansal67@gmail.com — a human answers.