Simple, transparent pricing

Start free. Upgrade when you need more. Cancel anytime.

🎉 Launch Special — Lock in this price forever

Free

Try DocLumi risk-free

$0/month

3 documents / month
File size up to 50MB
Basic AI chat
Text extraction
Markdown export

Basic

For regular researchers

$9.99/month

Paying monthly costs $41 more per year

50 documents / month
File size up to 150MB
AI chat + streaming
Smart translation
Document summarization
Markdown & TXT export
Email support

Pro

For power users & teams

$19.99/month

Paying monthly costs $81 more per year

200 documents / month
File size up to 500MB
Everything in Basic
Bilingual side-by-side view
Citation tracking
Batch processing
JSON export
Share links (24h)
Priority support

One-time use, no subscription —

No credit card required

$1.99

Join 10,000+ researchers already using DocLumi

4.9/5 from early users

"Finally a PDF tool that actually understands my research papers."— PhD Candidate, Tsinghua University

Why Choose DocLumi?

94%

Cheaper Than GPT-4o

DeepSeek V4

Languages Supported

DeepSeek V4

99.9%

Platform Uptime

Vercel SLA

Real-time

Translation Speed

per token

96.3%

Layout Preservation

PyMuPDF

256-bit

AES Encryption

At Rest + Transit

3 docs/mo

Free Tier (Always Free)

No Credit Card

50 docs

Basic Plan (50 docs)

Frequently Asked Questions

Can I try before paying?

Yes! You get 3 free document uploads with full AI features — no credit card required.

What payment methods do you accept?

Stripe (Visa/Mastercard/Amex), Alipay, and WeChat Pay.

Can I cancel anytime?

Absolutely. Cancel your subscription anytime from your dashboard. No questions asked.

What happens to my documents after I upload them?

Documents are auto-deleted after 24 hours. You can also delete them manually at any time.

Is my data used to train AI models?

Never. We do not use your documents for training. DeepSeek API also has zero data retention.

Do you offer student discounts?

What file formats are supported?

PDF and DOCX. More formats coming soon.

Is there an API?

API access is available on the Pro plan. Contact us for details.

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