Free
₹0
- Your whole library: papers, notes, highlights, collections
- 100 MB for PDFs, up to 25 MB each
- AI on our key for your first 5 papers, then on your own free Gemini key
- Exports and backups at any time
Grantha, “book”
Every paper, carefully kept.
Your research papers, notes and references in one quiet place: details filled in for you, PDFs you can read and highlight, and a reference list ready for your thesis.
How it works
Papers sit on your International, National and State shelves (rename them to suit your field), with collections for chapters and projects.
- Step 1
Add a paper
Paste a DOI, an arXiv id or a title, or drop in a PDF. The details are looked up for you, and possible duplicates are pointed out.
- Step 2
Read and take notes
Read the PDF, highlight what matters, and write the objective, methods, findings and gaps in one place, with AI drafts when you want them.
- Step 3
Cite and review
Get references in APA 7, MLA 9, IEEE and Harvard, export BibTeX or a spreadsheet, and review a shelf at a glance.
AI that stays in your hands
Summaries, key findings, methods, limitations, explanations and comparisons, written from the paper's text and always marked as drafts to check.
How AI works here
- Your first 5 papers are free. We pay for those AI requests, so you can try everything first.
- After that, add your own free key. Google gives one to every Google account, and it takes about a minute.
- Your key stays yours. It's stored encrypted, used only for your own requests, and you can remove it at any time.
Where your key goes
Your key is sent to our server once. We check it with Google, then store it encrypted. Only your own AI requests use it, and we never show it again: just its last four characters.
On Google's free tier, Google may use what you send to improve its products. If a paper mustn't be shared with Google, don't use AI on it.
Pricing
Grantha is free. A paid plan for heavier use is on its way.
Pro
Coming soon
- 2 GB for PDFs
- AI on our key without adding your own
- Everything in Free
Price to be announced. Free accounts keep everything they have.
Questions
Who can see my papers and notes?
Only you. Your library is private to your account; we don't sell or share it. AI answers built from a paper's public text (an arXiv paper, a published abstract) can be shared with the next person who asks about the same paper, so nobody pays twice; answers from your own PDFs and notes stay yours.
Why would I add my own AI key?
Your first 5 papers use our key, so you can try everything. After that, a free Gemini key from Google keeps AI free for you: it takes about a minute, and it's stored encrypted and used only for your requests.
Can I get my data out?
Yes, at any time: a full backup (JSON), BibTeX, a spreadsheet (CSV) or a reference list in APA 7, MLA 9, IEEE and Harvard.
Does it work on my phone?
Yes. Grantha works in any modern browser on a phone, tablet or computer, in light or dark.
What happens to my PDFs?
They're stored privately for you (up to 25 MB each). For AI, only the text taken from a PDF is sent, never the file itself.
How do I delete my account?
In Settings → Account. It removes your account, papers, notes, highlights and files for good, so export a backup first if you want to keep anything.