ReticulOS
Desktop notes for Windows and Linux that keep what you save from any app in one place, then answer your questions and show the note each answer came from.
A startup from India, founded by Ahmed Ansari.
Desktop notes for Windows and Linux that keep what you save from any app in one place, then answer your questions and show the note each answer came from.
A startup from India, founded by Ahmed Ansari.
This page is designed to help you find out whether ReticulOS is good and if it is the right choice for you.
ReticulOS is a desktop notes app that keeps what you save from any app in one place, then answers your questions about it and shows you exactly where each answer came from. Windows and Linux (Debian, Ubuntu); Mac is coming next. Public beta, version 0.12.17.
Save from any app. Highlight text anywhere and press Ctrl+Shift+= to save it, or Ctrl+Shift+4 to capture an area of the screen. On Wayland desktops you add the shortcuts once in your keyboard settings.
Find it again. Ctrl+Shift+/ searches everything you've saved, from any app, offline.
Ask Ret. Ask in your own words, even to find a photo by describing it. Ret answers from your notes and cites the exact note, PDF page or moment in a recording it used. No AI subscription or key needed.
You approve every change. Ret, and Claude, Cursor or other MCP apps you connect, ask before creating or editing anything, and every change can be undone.
Also: a Day book where unfinished to-dos carry over, a password vault behind its own password, and form fill on Pro.
Privacy. Your library is encrypted on your computer, and saving and searching work offline. When you ask Ret, your question, the recent chat and the notes it finds go to the ReticulOS service and Google's Gemini to answer it; the privacy page lists everything that leaves your computer. Export your collections to Markdown or JSON any time.
Pricing. Free, with no time limit: the app, search, connecting AI apps and 25 Ret answers a month. Pro, $20 a month or $200 a year, adds PDFs, audio and video searchable to the page or the minute, form fill and 1,000 answers a month. Your first sign-in includes a 14-day Pro trial, no card. Student $10 a month with a school email; Founder Edition $129 once, for the first 100 backers.
Listed in
One-shortcut capture
Highlight text in any app and press Ctrl+Shift+= to save it into the collection you have open. On Wayland desktops you add the shortcut once in your keyboard settings.
Answers with sources
Press Ctrl+Shift+Space and ask in your own words. Ret answers from your notes and cites the exact note, PDF page or moment in a recording; click a citation to open it.
Quick search
Ctrl+Shift+/ opens a search box over everything you've saved, from any app, and it works without internet.
Find a photo by describing it
Ask Ret for the photo of the washer receipt and it finds the picture. A small model downloads the first time you use it.
You approve every change
Ret can create and edit notes for you, but each change shows an Approve or Reject card first, and every change can be undone. It can't delete anything for good or open your vault.
Works with Claude and Cursor
Claude, Cursor and other MCP apps can search your notes once you switch it on. It runs on your computer, it's on the free plan, and any change they want to make asks you first.
Encrypted on your computer
Your library is encrypted at rest, with the key kept in your system keyring. Saving, organizing and searching work offline.
Export to Markdown
Export your collections any time to a folder of plain Markdown files, with pictures and PDFs saved as files, or to one JSON file.
Day book
A page for each day that opens on today, with tags. Unfinished to-dos carry over, and a day can be summarized by AI in one click.
Password vault
Passwords sit behind their own password, encrypted a second time, and lock after 5 minutes idle. There's no recovery if you lose that password, by design.
Screen Capture Capabilities
Ctrl+Shift+4 captures an area of the screen into a note.
PDFs, audio and video (Pro)
Add PDFs up to 50 MB and audio or video up to 200 MB. Ret finds things in them down to the page or the minute.
Form fill (Pro)
Capture a form with Ctrl+Shift+5 and ReticulOS finds the answer for each field in your notes, each with a Copy button. It never types into the page.
Always-on-top widget
A small window that stays above your other apps, with two modes: Clip for your collections and Ret for questions. Ctrl+Shift+\ shows or hides it.
Grid, list or canvas
Reticulum, the full workspace, shows each collection as a grid, a list or a free canvas you arrange by hand.
Rich editor
Slash commands for headings, lists, to-dos, tables, callouts, collapsible sections, code and highlights.
Paste to save
Paste anywhere in the workspace and it becomes a note: a picture, a link or text.
Record meetings and lectures (Pro)
One click records your microphone and computer sound straight into a note; a crash loses at most 5 seconds. Audio plays in the note with speed control.
Save answers as notes
Keep any Ret answer as a note, with its sources listed.
Ret reads pictures and PDF pages
While answering, Ret can look at the pictures and PDF pages it finds in your notes.
Your notes aren't used to train AI
Only the notes needed for an answer go to Google's paid Gemini API, under terms where Google doesn't use them to improve its products. The service counts answers and never keeps your questions.
Free AI answers
25 Ret answers a month on the free plan, with no AI subscription or key. Pro has 1,000 a month.
Undo a delete
Deleting a note can be undone right after; deleted notes are removed for good after 30 days.
Works signed out
The free app works without signing in. Signing in uses your Google account.
Signed updates
Updates arrive inside the app and are signed. On Linux they install only when you click Restart to update.
Files stay yours after a downgrade
PDFs, audio and video you added stay usable on every plan, including after you leave Pro.
ReticulOS keeps what you save from any app in one place and answers your questions from it, showing exactly where each answer came from: the note, the PDF page or the moment in a recording. Saving takes one shortcut (Ctrl+Shift+=) from any app. Ret, the assistant inside it, asks before it creates or edits anything, and every change can be undone; the same goes for Claude, Cursor and other AI apps you connect. Your library is encrypted on your computer, and Ret needs no AI subscription or key.
Choose ReticulOS if the things you need later are scattered across browser tabs, chats, emails and screenshots. You save the line where you find it, with one shortcut, and later ask for it in your own words; the answer links to the note it came from, so you can check it. It's free with no time limit, needs no AI subscription or key, keeps your library encrypted on your computer, and lets you export your collections to Markdown or JSON any time.
Everyday people on Windows and Linux who save things to find later: the booking reference in an email, the return date on an order page, the Wi-Fi password someone texted, the slide you need the night before an exam. Saving takes one shortcut and asking takes plain words, so no technical knowledge is needed. Students get Pro for $10 a month with a school email, and people who already use Claude or Cursor can connect them to their notes for free.
ReticulOS takes its name from reticulum, Latin for a small net. The idea is that everything you save—a quote, picture, link, or note—becomes a connected part of one personal knowledge base, so finding one piece can help you find the related context. The first private beta began in March 2026. ReticulOS is made by one independent developer.
ReticulOS is an Electron desktop app for Linux and Windows. Your library is an SQLite database encrypted on your computer, with full-text search. Ret's answers come from Google's Gemini through the ReticulOS service, working from the notes it finds on your computer, and AI apps such as Claude and Cursor connect over MCP.
We have collected here some useful links to help you find out if ReticulOS is good.
Check the traffic stats of ReticulOS on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of ReticulOS on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of ReticulOS's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of ReticulOS on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about ReticulOS on Reddit. This can help you find out how popualr the product is and what people think about it.
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