Free tools
Your Deep Research reports, on your Kindle instead of a browser tab
Turn a Deep Research report (ChatGPT, Gemini, Claude) into an EPUB with chapters and a table of contents, and send it straight to your Kindle. Paste the Markdown or upload the .docx. Free, no sign-up.
Download the EPUB
For USB transfer, Calibre, or Amazon's «Send to Kindle» app.
The EPUB is built in your browser: your report never touches our server unless you choose to email it.
How it reaches your Kindle
Approve the sender (first time only)
In Amazon: Manage Your Content and Devices → Preferences → Personal Document Settings → Approved Personal Document E-mail List. Add our sender address (you'll see it when you send). Without this step, Amazon silently drops the email.
Copy your @kindle.com address
It's on that same screen, under «Send-to-Kindle E-Mail Settings». Every Kindle has its own (something like name_123@kindle.com).
Paste, send, sync
Paste your text above, type your address and hit send. With your Kindle on wifi, the book lands in your library within a couple of minutes.
Like the tools? Wait until it writes you a course.
These are free because they're the easy part. The product turns a topic into a course you'd actually read — and sends it to the same Kindle.
More free tools
Send anything to your Kindle, turned into a book
Paste text or Markdown — a ChatGPT answer, a report, your notes — and turn it into a chaptered EPUB. Download it or send it straight to your Kindle. Free, no sign-up.
Export your Kindle highlights, organized by book
Upload your My Clippings.txt and get your Kindle highlights and notes organized by book: Markdown for Obsidian, CSV for Excel, or Notion. Free, no sign-up, nothing uploaded — everything runs in your browser.
Turn your Kindle vocabulary into Anki flashcards
Turn your Kindle's vocab.db into Anki flashcards that keep each word's original sentence, or into a clean CSV. Runs 100% in your browser — the file is never uploaded. Free, no sign-up.
Turn your ChatGPT conversations into a book for your Kindle
Paste a ChatGPT, Claude or Gemini conversation and turn it into an EPUB with one chapter per question. Download it or send it straight to your Kindle. Free, no sign-up, no extensions.
Take your Notion pages to your Kindle, turned into a book
Upload your Notion export ZIP and turn it into an EPUB with one page per chapter. Download it or send it straight to your Kindle. Free, no sign-up; the file never leaves your browser.
From your Obsidian vault to your Kindle, no plugins
Pick several .md notes from your Obsidian vault and turn them into an EPUB with one note per chapter, ready for your Kindle. Free, no sign-up, no plugins; your notes never leave your browser.
Word counter
Count words, characters and sentences as you type, with an estimated reading time. Everything runs locally — your text never leaves the browser.
Slug generator
Turn any title into a clean, URL-safe slug — lowercase, hyphens, no accents. Copy it with one click.