Personal library · in the cloud
A home for your books.
Upload the ebooks, PDFs, comics and manga you already have. Organize everything on shelves, read on any screen and pick up where you left off.
- EPUB
- DJVU
- CBZ
- CBR
- CB7
- MOBI
- AZW3
- FB2
- TXT
- In the browser, nothing to install
- Comics and manga, with manga mode
- Up to 4 people on the Household plan
Readteca is your library, not a store. You upload your own files, organize them your way and read on any screen, with your progress saved to your account.
Ch. I · Your files
Your books are scattered. Bring them all home.
A notes.pdf lost in a group chat, a dom-casmurro.epub in Downloads, the manga collection on a hard drive nobody plugs in. In Readteca, everything goes on the same shelf, with cover, author and series.
-
EPUB
The ebook format. Opens with the font and theme you choose.
-
PDF and DJVU
That folder of course notes and papers everyone has.
-
CBZ, CBR and CB7
Comics and manga, page by page, in the right direction.
-
MOBI, AZW3 and FB2
Other ebook formats, also opened in the Readteca reader.
-
TXT
Plain text, no fuss.
Ch. II · How it works
Upload. Organize. Read.
-
Plate I · Upload
Drag your files in or pick them on your phone. Readteca reads the title, author, series and cover from the file itself.
-
Plate II · Organize
Build shelves your way, like Classics, College and Manga. Find any book by author, series or publisher.
-
Plate III · Read
Open it in the browser, nothing to install. The bookmark keeps your place.
To get started, a shelf of public-domain Brazilian classics, in Portuguese, comes ready. Tap a book to read its first sentence.
Ch. III · On any screen
Pick up where you left off, on any screen.
- ·Ch. 31 · 21%
On the bus, on the phone.
- ·Ch. 33 · 22%
On the couch, on the tablet.
- ·Ch. 36 · 24%
At the desk, on the computer.
Your progress is saved to your account, not to the device. Open it on another screen and keep reading where you left off.
Ch. IV · Devices
Works on what you already have.
Readteca opens in the browser on your phone, tablet and computer. If you prefer, install it as an app on your home screen, without going through an app store.
-
Phone
Android and iPhone
-
Tablet
Android and iPad
-
Computer
Windows, macOS, Linux and Chromebook
-
Browsers
Chrome, Edge, Safari, and Firefox
How to install
- On iPhone and iPad: tap Share, then Add to Home Screen.
- On Android and on a computer: open it in Chrome or Edge and choose Install in the browser menu.
Local plan: up to 2 connected devices. Reader and Household: up to 10 devices or browsers connected at the same time, per person.
Ch. V · Comics and manga
Manga reads right to left. Readteca knows that.
Open CBZ and CBR right in the browser. In manga mode, pages go from right to left, and Readteca remembers the direction of each book.
- Cover, series and volume read from the file itself
- Volumes in order on the shelf
- Tap the edges to turn the page
Ch. VI · Reading
Made for reading for hours.
Pick the theme, font and size, and the page changes right away. Literata was designed for long reading on screens. Atkinson Hyperlegible makes similar letters easy to tell apart, for anyone who needs more clarity.
Uma noite destas, vindo da cidade para o Engenho Novo, encontrei no trem da Central um rapaz aqui do bairro, que eu conheço de vista e de chapéu. Cumprimentou-me, sentou-se ao pé de mim, falou da lua e dos ministros, e acabou recitando-me versos. A viagem era curta, e os versos pode ser que não fossem inteiramente maus. Sucedeu, porém, que, como eu estava cansado, fechei os olhos três ou quatro vezes; tanto bastou para que ele interrompesse a leitura e metesse os versos no bolso.
- A bookmark that keeps your place
- EPUB, PDF and TXT open in the browser
- Paper, Sepia, Night and Black themes
Ch. VII · The whole household
One library for the household. A shelf for each person.
On the Household plan, up to 4 people from the same home share 8 GB. Each person has their own shelf, their own progress and their own bookmarks.
- Sharing is up to whoever uploaded the book: book by book or by shelf.
- As with a real bookcase, a lent book stays with one person at a time. Whoever uploaded it can always read it.
- One subscription, paid by the household manager.
- Invites by email, valid for 7 days.
To keep the household stable, there are up to 2 member changes per year, and whoever leaves waits 30 days to join another household.
Ch. VIII · Comparison
What each option does with the books you already own.
Kindle, Google Play Books and Apple Books are stores with a reader. Readteca doesn’t sell books: it keeps and opens yours, organized your way.
| Readteca | Send to Kindle | Google Play Books | Apple Books | calibre | |
|---|---|---|---|---|---|
| Files you can read | EPUB, MOBI, AZW3, FB2, TXT, PDF, DJVU, CBZ, CBR and CB7 open in the browser | EPUB, PDF, DOC, DOCX, TXT, RTF, HTML and images | EPUB and PDF | EPUB, PDF and audiobooks | All the major ebook formats |
| Comics in CBZ or CBR | Yes, with manga mode | Doesn’t accept CBZ or CBR | Doesn’t accept CBZ or CBR | Not in Apple’s list of import formats | Yes (CBZ, CBR and CB7) |
| Read in the browser, no install | Yes | No, for uploaded files | Not stated | Not stated: apps for Apple devices | Yes, from a computer running calibre’s Content server |
| Where your files show up | On any phone, tablet or computer | Kindle devices and apps | On any device you sign in to | On Apple devices signed in to the same Apple Account | On your computer and on devices that reach its Content server |
| Sharing uploads with your household | On the Household plan, up to 4 people, each with their own shelf | Not stated | No: Family Library doesn’t take documents you uploaded | Not stated: it shares Book Store purchases | Yes, with Content server accounts you create |
| Has a bookstore | No | Yes | Yes | Yes | No: it’s an e-book manager |
| Who runs the server | Readteca | Amazon | Apple | You, on your own computer | |
| Price | Local at no cost, up to 500 MB; Reader and Household priced in your currency at launch | No additional cost | No cost | No cost; sync uses iCloud | No cost; open source |
Where the others do better
- Kindle: the Kindle Store built into Amazon’s own e-readers, with weeks of battery life.
- Google Play Books and Apple Books: no cost, and Apple Books comes built into Apple devices.
- calibre: full control and conversion between many formats, for people with time to look after it.
Compared on November 4, 2026 against each service’s official pages. Brand names belong to their owners. Spotted something out of date? Write to contato@readteca.com.
See the sources
- Kindle · Send to Kindle
- Kindle · Send PDF, EPUB and Other Files to Your Kindle - Amazon Customer Service
- Kindle · Kindle Personal Document File Types That Support Notes - Amazon Customer Service
- Kindle · Amazon Best Sellers: Best Kindle eBooks
- Google Play Books · Upload PDF and EPUB files to your library - Computer - Google Play Help
- Google Play Books · Buy & read ebooks - Computer - Google Play Help
- Google Play Books · Use Google Play Family Library - Google Play Help
- Google Play Books · Google Play Books & Audiobooks - Apps on Google Play
- Apple Books · Import books, audiobooks, or PDFs in Books on Mac - Apple Support
- Apple Books · Use iCloud to read and listen on all your devices with Books on Mac - Apple Support
- Apple Books · What types of content can I share with my family? - Apple Support
- Apple Books · Apple Books - Apple
- Apple Books · Keep your Apple Books library and settings up to date with iCloud - Apple Support
- calibre · calibre - About
- calibre · The E-book viewer — calibre 9.17.0 documentation
- calibre · Frequently Asked Questions — calibre 9.17.0 documentation
- calibre · The calibre Content server — calibre 9.17.0 documentation
- calibre · calibre - Download calibre
Ch. IX · Plans
Three plans, clear rules.
Plans start at launch.
Local
To try it out.
No cost
- 500 MB in the cloud
- Files up to 95 MiB
- Up to 2 connected devices
- All formats
Reader Recommended
For people who read a lot.
Pricing in your currency at launch
- 2 GB in the cloud
- Files up to 95 MiB
- Up to 10 connected devices or browsers
- 14-day trial, no card needed
Household
For the whole household.
Pricing in your currency at launch
- 8 GB for the household
- Up to 4 people, each with their own shelf
- Files up to 95 MiB
- Up to 10 devices or browsers per person
- Yearly plans: pay for 10 months, read for 12.
- Cancel in the app whenever you want. If you change your mind within the first 7 days, you get a full refund.
- When the trial ends, nothing is charged: your account goes back to Local.
- While you’re a subscriber, nothing is deleted for going over the limit: only new uploads stop.
- On Household: up to 2 member changes per year.
Ch. X · Commitments
The books are yours. We take care of the house.
A library is only yours when you decide what goes in, who borrows from it and when to take it all with you. That’s why these rules apply to everyone.
- Selling books
- Never. Apart from the public-domain shelf, every file is uploaded by you.
- Reading and downloading if a payment is late
- Always available for your files.
- Deleting books because you went over the limit
- Never, while you’re a subscriber. If you cancel, whatever goes over Local stays for 90 days for you to read and export, and we email you first.
- Showing support the titles of your books
- Not by default. Only the owner or an admin, with a logged ticket and reason, or while reviewing a copyright report.
- Taking everything with you
- A ZIP with the original files.
- Changing your mind about deleting your account
- 30 days to undo it.
- Copy-protected files (DRM)
- We don’t accept them or help remove the protection.
Ch. XI · Questions
Questions
What files can I upload?
EPUB, MOBI, AZW3, FB2, TXT, PDF, DJVU and comics in CBZ, CBR and CB7, without copy protection (DRM). They all open in the Readteca reader, on any device.
Which formats pick up where I left off?
In every format, Readteca saves the spot where you stopped.
What counts toward my storage?
Only the files you upload. The versions Readteca prepares for reading are on us.
Can I send books to my Kindle?
Yes. From the app, you send your ebooks to your Kindle’s email address. Comics and DJVU files aren’t sent.
Does Readteca sell books?
No. Readteca is your library: you upload the books you already have. To get started, there’s a shelf of public-domain Brazilian classics, in Portuguese, such as Dom Casmurro and Iracema.
Is it a catalog subscription, like Kindle+?
No. With a catalog subscription, you read the store’s books while you pay. With Readteca, the files are yours and, if you cancel, you export everything.
Can I upload books I bought from other stores?
If the file has no copy protection (DRM), yes. Readteca doesn’t accept protected files and doesn’t help remove the protection, which Brazilian copyright law prohibits.
Do I need to install anything?
No. Readteca opens in the browser. If you like, install it as an app on the home screen of your phone or computer.
Can I read offline?
Not yet. Offline reading comes in a later version of the installed app.
How does the Household plan work?
Up to 4 people from the same home share 8 GB, each with their own shelf and progress. The household manager pays for the subscription and invites the others by email, and the invite is valid for 7 days. Each person chooses what to share, and a lent book stays with one person at a time. There are up to 2 member changes per year, and whoever leaves waits 30 days to join another household.
What if I go over my storage limit?
You keep reading and downloading everything. Only new uploads are paused until you make room or change plans. While you’re a subscriber, nothing is deleted because of it.
What if a payment fails?
For the first 10 days, nothing changes while we try again. From day 10 to day 30, new uploads and sharing with your household are paused, but you keep reading and downloading your files. On day 30, the account moves to Local.
How do I cancel?
In the app, whenever you want. Access continues until the end of the paid period. Then the account moves to Local, and whatever goes over 500 MB stays for 90 days for you to read and export. We email you 30, 7, and 1 day ahead, and only then delete it.
Can I get a refund?
Yes. If you change your mind within the first 7 days after subscribing, you get a full refund.
Who can use Readteca?
Adults 18 and over.
Where is my data stored?
Readteca’s servers and database are in Brazil, in Campinas (SP). The data protection officer answers at privacidade@readteca.com.
What if someone uploads a book that isn’t theirs?
Whoever uploads a file declares they hold the rights to it. Rights holders can report it at direitos@readteca.com. The book comes down within 48 hours of a valid report. The uploader can dispute it, and three confirmed violations close the account.
Make yourself at home. The house is yours.
Bring your books, set up your shelves and keep reading on any screen.
We’ll email you when Readteca opens.