macOS · Windows · Linux · iOS · Android · Web

Everything your AI makes, on one shelf.

Drop in the Markdown, HTML, JSX, images and PDFs your tools produce. Lookshelf renders them live, keeps them searchable, and syncs them to every device you own — encrypted.

Download for macOS Try it in your browser

Free · 100 MB in the cloud · no card required. Your files stay in this browser until you sign up — then they come with you.

Lookshelf · your library
The Lookshelf desktop app: a sidebar of pinned and recent files on the left, a rendered Markdown document in the middle, and appearance themes, contents and file details on the right.

The desktop app, as it looks on first launch. Same library on the web, iOS and Android.

MarkdownHTML — runsJSX — runs ImagesPDFFull-text search Folders & tagsEncrypted syncPrivate Vault

01 — It renders

Chat history is not a filing system.

HTML and JSX run in a sandbox, right in the library — the page you generated is a page again, not a code block you have to paste somewhere to see. Markdown reads as prose, images and PDFs open in place, and everything opens the same way on every platform.

Step 01

Open the document.

Tap a Markdown file on your shelf. It opens as prose — a reading column, real typography, your theme — not a wall of raw text.

Step 02

Jump by Contents.

Every heading becomes a table of contents. Tap one and the document scrolls to it. Long reports stop being a thumb workout.

Step 03

Flip to the source.

One tap shows what the AI actually wrote. Same document, same place — the code pane follows you as you scroll.

Step 04

It's on every shelf.

Add it on your phone, and it's on your desktop with the same rendering, the same contents, the same source.

welcome-to-lookshelf.md

      

    

  






  

    
02 — Why people keep it open

    
Three things, done properly.

    

      
It renders. Actually renders.
HTML and JSX run in a sandbox, isolated from your files and your account. The thing you made is the thing you see.

      
Findable a month later.
Full-text search across everything you have kept, folders and tags when you want structure, and a shelf that stays in order without maintenance.

      
On every device, quietly.
Native apps for macOS, Windows, Linux, iOS and Android, plus the web. Add something on your laptop at midnight, it is on your phone at breakfast.

    

    
    
      
  1. Drop it in.
    Drag a file, paste from the clipboard, or send it from the share sheet on your phone.
    2. 
      
  2. It comes back to life.
    Lookshelf renders it immediately and indexes the text inside, so you can search for the sentence you half-remember.
    3. 
      
  3. It stays.
    Encrypted, synced to your other devices, and — on Pro+ — sealed in a Private Vault only you can open.
    4. 
    

  






  

    
03 — Security

    
We built it so we cannot read your shelf.

    
Every document you sync is encrypted on our servers with a key unique to your account, and the encryption is bound to the object it protects, so a file cannot be moved or swapped without the decryption failing. That is the baseline on every plan, including Free.

    

      
Baseline
AES-256-GCMPer-user envelope encryption, with the object's own identity bound into the ciphertext.

      
Pro+
Vault: on-deviceKey derived from your passphrase with scrypt. Never transmitted, never stored.

      
Recovery
Printable kitA one-time key you keep somewhere physical. Required before the vault turns on.

      
Desktop
NotarizedThe macOS app is signed with a Developer ID and notarized by Apple on every release.

    

    
The Private Vault encrypts your backups on your device, with a key we never receive. We cannot open it, we cannot reset it, and we cannot recover it for you — which is the point, and also the risk. Keep the recovery kit.

  






  

    
04 — Pricing

    
Storage is what you pay for.

    
Every feature except the vault is on every plan. Founder pricing is locked for as long as the subscription stays active.

    

      

        
Free
$0
forever
100 MB in the cloud

        
  • Unlimited local library
  • Live rendering, search, folders and tags
  • All platforms, including the web app
  • Server-side encryption

      

      

        
Pro · founder price
$5/mo
$10/mo standard
5 GB in the cloud

        
  • Sync across every device
  • Version history
  • Everything in Free
  • Price locked while the subscription runs

      

      

        
Pro+ · founder price
$10/mo
$20/mo standard
20 GB in the cloud

        
  • The Private Vault — end-to-end encrypted, with a recovery kit
  • Everything in Pro
  • Price locked while the subscription runs

      

    

    
Cancel any time. The founder price stays with you for as long as the subscription runs — if it lapses, it returns to the standard price of $10 or $20 a month.

  






  

    
05 — Download

    
Six ways in.

    

      macOSApple silicon · signed and notarized · updates itself
      WindowsInstaller · verify the published SHA-256 checksum
      LinuxAppImage · verify the published SHA-256 checksum
      iOSiPhone and iPad · in App Store review — listing opens on approval
      AndroidPhones and tablets · in Google Play review — listing opens on approval
      Web appNothing to install — any modern browser
    

    
Windows and Linux builds are not code-signed yet, so those two open the release page with their checksums rather than starting a download.

  






  

    
06 — Questions

    
Where did that artifact go?

    

      
Where did that artifact go?
Into your shelf, if Lookshelf was open. Drag anything your AI made into the window, or paste it, and it becomes a document with a title, a preview and full-text search — instead of a tab you will close by accident.

      
Which tools does it work with?
All of them. Lookshelf takes files and pasted content, not API access, so anything that produces Markdown, HTML, JSX, an image or a PDF works — Claude, ChatGPT, Cursor, v0, Lovable, Bolt, or a text editor.

      
Does the HTML actually run?
Yes — the panel at the top of this page is proof. HTML and JSX render live in a sandbox, with scripts allowed but isolated from your files and your account.

      
What happens if I stop paying?
Your local library is untouched — it is on your disk and stays there. Cloud backups above the free 100 MB become read-only for 30 days so you can download or prune them, and the founder price is released.

      
Can you read my files?
On Free and Pro, files are encrypted on our servers with keys we hold, so technically we could be compelled to. On Pro+ with the Private Vault, they are encrypted on your device with a key we never receive, and we genuinely cannot.

      
What if I forget my vault passphrase?
Use the recovery kit you printed when you turned the vault on. If both are gone, the vault cannot be opened — not by you and not by us. We would rather tell you that clearly now than discover it together later.

      
Is my data stuck in Lookshelf?
No. Every document exports as the file it came in as, and Account → Export produces a single encrypted archive of everything, on demand.

      
Do I need an account to try it?
No. Open the web app or install the desktop app and start dropping files in. Everything stays on your device until you make an account — and when you do, it comes with you.

    

  






  

    
Give everything your AI makes a place to live.

    

      Download for macOS
      Try it in your browser