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Updated 12 Nov 2026 · prices read on vendor pages

8 best ChatPDF alternatives in 2027

Mehmet ElmicenniReviewed by Mehmet Elmicenni, founder of Zekai•Prices checked •How we check

The short answer

The best ChatPDF alternatives in 2027 are PDF.ai (best overall, $10/mo billed yearly), AskYourPDF (best free plan: 50 questions a day) and Kotaemon (best open source, Apache-2.0). ChatPDF itself starts at $7.58/mo billed yearly. Zekai checked these prices on vendor pages on 12 Nov 2026; 5 more are compared below, including 2 with a free plan and 3 open source.

Open the Zekai Cost Finder Get price alerts
Best overallSee in table →
PDF.ai logo

PDF.ai

$10/mo billed yearly · free plan

6.7
Best free planSee in table →
AskYourPDF logo

AskYourPDF

$11.99/mo billed yearly · free plan

7.4
Best open sourceSee in table →
Kotaemon logo

Kotaemon

Free to self-host · Apache-2.0

7.3
8alternatives compared
4with a free plan
4open source
$9.99/mocheapest paid · Humata
$7.58/mo billed yearlyChatPDF starts at
01 · Zekai Price Ledger

Which ChatPDF alternatives are worth it in 2027?

The strongest ChatPDF alternatives for chatting with documents are PDF.ai for API and team use, AskYourPDF for model choice, Humata for page-metered team plans and NotebookLM for multi-source notebooks. Self-hosted Kotaemon, Open WebUI, Open Notebook and AnythingLLM suit people who need files to stay on their own machine.

ToolTypeStarting priceFree plan limitBest forCost for your teamChecked
ChatPDF logo
ChatPDFThe tool you are replacing
 You are here
$7.58/mo billed yearlyPlus, billed yearly (50% off) or $14.99 billed monthly; read from the in-app Upgrade to Plus dialog, as /pricing is a 404
 2 documents a day Quick chat with a PDF, no setup — 12 Nov 2026 Pricing ↗
PDF.ai logo
PDF.ai Zekai score 6.7Best overall
 Free plan + paid
$10/mo billed yearlyPro, billed yearly; $17 billed monthly (Ultimate $20/user yearly or $27 monthly; Enterprise $30/$37)
 1 PDF upload, 100 questions a month, 10MB file, OCR on 2 pages PDF chat with a parsing API — 12 Nov 2026 Pricing ↗
AskYourPDF logo
AskYourPDF Zekai score 7.4Best free plan
 Free plan + paid
$11.99/mo billed yearlyPremium, billed yearly; $14.99 billed monthly per the page FAQ (Pro $14.99 yearly or $19.99 monthly)
 1 document a day, 100 pages each, 50 questions a day Cheap PDF chat with model choice — 12 Nov 2026 Pricing ↗
Humata logo
Humata Zekai score 8.6Cheapest paid
 Free plan + paid
$9.99/moExpert, monthly, up to 3 people (Team is $49/user/mo for up to 10 people)
 60 free pages, 1 user Page-metered Q&A for small teams — 12 Nov 2026 Pricing ↗
NotebookLM logo
NotebookLM Zekai score 9.5
 Free plan + paid
$19.99/moGoogle AI Pro bundle, monthly (Plus price not shown; Ultra $99.99/mo)
 100 notebooks, 50 sources per notebook Source-grounded notebooks from your files — 12 Nov 2026 Pricing ↗
Kotaemon logo
Kotaemon Zekai score 7.3Best open source
 Open source
Free (self-hosted)
 No limit, self-hosted (Apache-2.0) Self-hosted RAG chat for documents $0 12 Nov 2026 Code ↗
Open WebUI logo
Open WebUI Zekai score 9.0
 Open source
Free (self-hosted)
 No limit, self-hosted (Open WebUI License (branding clause, not OSI-approved)) Self-hosted chat UI with document RAG $0 12 Nov 2026 Code ↗
Open Notebook logo
Open Notebook Zekai score 7.9
 Open source
Free (self-hosted)
 No limit, self-hosted (MIT) Self-hosted notebook with any model $0 12 Nov 2026 Code ↗
AnythingLLM logo
AnythingLLM Zekai score 8.6
 Open source
Free (self-hosted)
 No limit, self-hosted (MIT) Private document chat on your desktop $0 12 Nov 2026 Code ↗

Every price was read on the vendor's own pricing page on the date shown. The Cost Finder assumes one entry plan per person, so it multiplies by your team size; yearly prices are shown per month, and team or business plans can cost more per seat. "Not checked" means we could not confirm a public price.

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02 · Free plan

Is there a free version of ChatPDF?

Yes. ChatPDF's FAQ says the free plan lets you analyze 2 documents every day, with no account needed to start; an account adds saved history and multi-document chats. Plus removes the cap with unlimited PDFs and questions, 2,000 pages per PDF and a higher-quality model.

Source: ChatPDF pricing page, read 12 Nov 2026.

Free$0

2 documents a day

Paid from$7.58/mo billed yearly

Plus, billed yearly (50% off) or $14.99 billed monthly; read from the in-app Upgrade to Plus dialog, as /pricing is a 404

03 · Free alternatives

What are the best free ChatPDF alternatives?

AskYourPDF has the clearest free alternative: 1 document a day, up to 100 pages each and 50 questions a day. Humata gives 60 free pages and NotebookLM's free tier allows 50 sources per notebook. ChatPDF itself allows 2 documents a day. Self-hosted tools cost nothing to install but need a model API or local model.

PDF.ai logo

PDF.ai

Best overallFree plan + paid
1 PDF upload, 100 questions a month, 10MB file, OCR on 2 pages
Paid from $10/mo billed yearly
vs ChatPDF →Zekai review
AskYourPDF logo

AskYourPDF

Best free planFree plan + paid
1 document a day, 100 pages each, 50 questions a day
Paid from $11.99/mo billed yearly
vs ChatPDF →Zekai review
Humata logo

Humata

Cheapest paidFree plan + paid
60 free pages, 1 user
Paid from $9.99/mo
vs ChatPDF →Zekai review
NotebookLM logo

NotebookLM

Free plan + paid
100 notebooks, 50 sources per notebook
Paid from $19.99/mo
vs ChatPDF →Zekai review
04 · Open source

What are the best open-source ChatPDF alternatives?

The open-source options are Kotaemon (Apache-2.0), Open Notebook (MIT), AnythingLLM (MIT) and Open WebUI, which carries its own licence with a branding clause. Open Notebook mirrors the notebook workflow with 20-plus model providers; AnythingLLM installs as a desktop app; Kotaemon and Open WebUI are server-based.

Kotaemon logo

Kotaemon

Apache-2.0★ 25.8k GitHub stars · Jul 2026
To self-host: Docker image ghcr.io/cinnamon/kotaemon (lite or full), or a Python install; needs an OpenAI, Azure or Cohere key, or a local model through Ollama or llama-cpp-python.
Last release 31 May 2026
Zekai open-source pageSource code ↗Managed hosting slot
Open WebUI logo

Open WebUI

Open WebUI License (branding clause, not OSI-approved)
To self-host: pip install open-webui (Python 3.12) or the ghcr.io/open-webui/open-webui Docker image; connect Ollama or OpenAI-compatible APIs, with a bundled-Ollama image available.
Last release 8 Nov 2026
Source code ↗Managed hosting slot
Open Notebook logo

Open Notebook

MIT★ 41.9k GitHub stars · Nov 2026
To self-host: Docker Compose stack with SurrealDB and the app (UI, API, worker); needs Docker plus a provider key or local model server such as Ollama, added in the UI.
Last release 4 Nov 2026
Zekai open-source pageSource code ↗Managed hosting slot
AnythingLLM logo

AnythingLLM

MIT★ 68.2k GitHub stars · Nov 2026
To self-host: Desktop installers for Mac, Windows and Linux, or Docker (multi-user is Docker only); includes a built-in local model engine or connects to cloud model keys.
Last release 26 Oct 2026
Zekai open-source pageSource code ↗Managed hosting slot
05 · Side by side

How does ChatPDF compare with each alternative?

ChatPDF Plus costs $14.99 monthly or $7.58 a month billed yearly and offers unlimited PDFs and questions, 2,000 pages per PDF and 50 PDFs per folder. PDF.ai meters uploads and questions, AskYourPDF meters questions a day, Humata meters pages, and NotebookLM bundles with Google AI plans.

01
PDF.ai logo

ChatPDF vs PDF.ai

Best overallFree plan + paid$10/mo billed yearly · checked 12 Nov 20266.7
The differencePro raises the cap to 100 PDF uploads and 1,000 questions a month; Ultimate is unlimited, uses an advanced model and adds Parse, Extract and Chat APIs plus team invites.
Switch to PDF.ai ifyou need up to 100 PDFs, API access or invited teammates, which ChatPDF Plus does not list
Stay with ChatPDF ifyou mostly read single PDFs yourself and want yearly pricing below $8 a month
Pros
  • Dramatically reduces time spent reading long documents.
  • Finds specific information quickly with natural language questions.
Cons
  • Accuracy can be limited by poorly scanned or formatted PDFs.
  • Free plan is very restrictive (1 PDF, 10 questions).

Pros and cons from the Zekai review of PDF.ai · Verdict: Instant PDF Answers

Visit PDF.aiRead the Zekai reviewPrice alert
02
AskYourPDF logo

ChatPDF vs AskYourPDF

Best free planFree plan + paid$11.99/mo billed yearly · checked 12 Nov 20267.4
The differencePremium accepts documents up to 2,500 pages and 31MB, allows 1,200 questions a day and lets you choose GPT-5, Gemini 2.5 Flash, or credit-priced Claude 4.5 models.
Switch to AskYourPDF ifyou want to pick the underlying model and ask over 1,000 questions a day
Stay with ChatPDF ifyou chat with a handful of PDFs a week and do not need model choice
Pros
  • Chat with multiple documents at once to synthesize information.
  • Saves significant time reviewing long reports, contracts, and books.
Cons
  • Free plan is limited to 1 document upload and 50 questions per day.
  • Access to the most advanced AI models requires credits, even on paid tiers.

Pros and cons from the Zekai review of AskYourPDF · Verdict: Your Document Co-Pilot

Visit AskYourPDFRead the Zekai reviewPrice alert
03
Humata logo

ChatPDF vs Humata

Cheapest paidFree plan + paid$9.99/mo · checked 12 Nov 20268.6
The differenceBills by pages rather than documents: Expert includes 500 pages a month then $0.02 a page, Team includes 5,000 at $0.01, and both list GPT-5 support.
Switch to Humata ifyour volume is low enough that 500 pages a month at $9.99 beats a flat subscription
Stay with ChatPDF ifyou want unlimited PDFs and questions rather than a page meter
Pros
  • Provides citations for every AI-generated answer, ensuring academic integrity.
  • Free tier available for light use (up to 60 pages per month).
Cons
  • Free plan is limited to 60 pages, which is insufficient for most major research projects.
  • Pay-per-page model on paid plans can lead to unpredictable monthly costs.

Pros and cons from the Zekai review of Humata · Verdict: AI Research Assistant for PDFs

Visit HumataRead the Zekai reviewPrice alert
04
NotebookLM logo

ChatPDF vs NotebookLM

Free plan + paid$19.99/mo · checked 12 Nov 20269.5
The differenceA notebook holds up to 50 sources on the free plan, 300 on Pro and 500 or 600 on Ultra,, against 50 PDFs per ChatPDF Plus folder. Google now brands it Gemini Notebook.
Switch to NotebookLM ifyou want to combine dozens of mixed sources in one notebook inside a Google account
Stay with ChatPDF ifyou only need quick questions on one PDF and pay under $15 a month
Pros
  • Ensures answers are relevant and based only on your provided documents.
  • Drastically reduces time spent reading and synthesizing large volumes of text.
Cons
  • Effectiveness is entirely dependent on the quality of uploaded source material.
  • Does not browse the live web; limited to the documents you provide.

Pros and cons from the Zekai review of NotebookLM · Verdict: Your personal document expert.

Visit NotebookLMRead the Zekai reviewPrice alert
05
Kotaemon logo

ChatPDF vs Kotaemon

Best open sourceOpen sourceFree (self-hosted)7.3
The differenceRuns on your own server with OpenAI, Azure, Cohere, Groq or local Ollama models, so files never reach a third-party PDF service.
Switch to Kotaemon ifdocuments must stay on hardware you control or you want to choose your own model
Stay with ChatPDF ifyou do not want to run Docker or look after a server
Visit KotaemonRead the Zekai reviewPrice alert
06
Open WebUI logo

ChatPDF vs Open WebUI

Open sourceFree (self-hosted)9.0
The differenceSelf-hosted platform built to run offline, connecting Ollama or OpenAI-compatible APIs; document chat is one feature of a general chat interface.
Switch to Open WebUI ifyou want one self-hosted interface for many models where PDF chat is one feature
Stay with ChatPDF ifyou want a dedicated PDF reader with a side-by-side source view and no server
Pros
  • Complete data ownership and privacy on your own hardware
  • Unified interface for multiple local and cloud LLM providers
Cons
  • Requires managing your own self-hosted infrastructure
  • No built-in cloud hosting tier provided directly by the core open source project

Pros and cons from the Zekai review of Open WebUI · Verdict: Self-hosted AI workspace

Visit Open WebUIRead the Zekai reviewPrice alert
07
Open Notebook logo

ChatPDF vs Open Notebook

Open sourceFree (self-hosted)7.9
The differenceConnects to 20-plus providers including OpenAI, Anthropic, Google, Mistral and Ollama, and runs fully local, per its README.
Switch to Open Notebook ifyou want a notebook workflow with your own choice of 20-plus model providers
Stay with ChatPDF ifyou prefer a hosted tool with a 2-document-a-day free plan and no containers
Visit Open NotebookRead the Zekai reviewPrice alert
08
AnythingLLM logo

ChatPDF vs AnythingLLM

Open sourceFree (self-hosted)8.6
The differenceShips as a desktop app for Mac, Windows and Linux with a built-in local LLM engine, so documents can be chatted with on your own computer.
Switch to AnythingLLM ifyou want a one-click desktop install that chats with files locally
Stay with ChatPDF ifyou would rather work in a browser tab without installing software
Visit AnythingLLMRead the Zekai reviewPrice alert
06 · What changed

Why do people leave ChatPDF?

  • ChatPDF's own FAQ says the free plan analyzes 2 documents every day, and that queries are routed between GPT-4o and GPT-4o-mini. Rivals such as AskYourPDF list GPT-5 models. Date shown is the day the page was read. (source)

  • ChatPDF has no public pricing page: /pricing returns 404 and the plans are shown only in an in-app Upgrade to Plus dialog ($14.99 monthly, $7.58 a month yearly). (source)

08 · FAQ

Questions people ask about ChatPDF alternatives

What is the best alternative to ChatPDF in 2027?

PDF.ai is the best overall ChatPDF alternative on this page ($10/mo billed yearly). For no cost, AskYourPDF has a free plan (1 document a day, 100 pages each, 50 questions a day). To self-host, Kotaemon is open source (Apache-2.0).

Is there a free version of ChatPDF?

Yes. ChatPDF has a free plan: 2 documents a day. Paid plans start at $7.58/mo billed yearly, checked on 12 Nov 2026.

Is there a 100% free alternative to ChatPDF?

Yes. Kotaemon, Open WebUI, Open Notebook, AnythingLLM are open source and free to self-host. PDF.ai, AskYourPDF, Humata, NotebookLM have a free plan with limits, shown in the table.

What is cheaper than ChatPDF?

Humata starts at $9.99/mo, against $7.58/mo billed yearly for ChatPDF, as listed on each vendor's pricing page on 12 Nov 2026.

How much do ChatPDF alternatives cost for a team of 5?

If each of 5 people buys the entry paid plan, at the prices Zekai checked on 12 Nov 2026, the monthly cost is Humata $49.95/mo, PDF.ai $50/mo, AskYourPDF $59.95/mo, against ChatPDF $37.90/mo for ChatPDF. Team and business plans can cost more per seat. The Zekai Cost Finder on this page recalculates for any team size.

Which is better, PDF.ai or ChatPDF?

Pro raises the cap to 100 PDF uploads and 1,000 questions a month; Ultimate is unlimited, uses an advanced model and adds Parse, Extract and Chat APIs plus team invites. Choose PDF.ai if you need up to 100 PDFs, API access or invited teammates, which ChatPDF Plus does not list. Stay with ChatPDF if you mostly read single PDFs yourself and want yearly pricing below $8 a month.

Why are people leaving ChatPDF?

The documented reasons are: ChatPDF's own FAQ says the free plan analyzes 2 documents every day, and that queries are routed between GPT-4o and GPT-4o-mini. Rivals such as AskYourPDF list GPT-5 models. Date shown is the day the page was read (12 Nov 2026); ChatPDF has no public pricing page: /pricing returns 404 and the plans are shown only in an in-app Upgrade to Plus dialog ($14.99 monthly, $7.58 a month yearly) (12 Nov 2026). Each is sourced in the section above.

What is the best ChatPDF alternative?

It depends on the job. AskYourPDF suits model choice, PDF.ai suits API and team use, NotebookLM suits many-source notebooks, and Kotaemon or Open Notebook suit self-hosting.

09 · Method

How did Zekai check this page?

Zekai independently reviews AI tools. For this page we read each vendor's own pricing and product pages and recorded the starting price, the free-plan limit and the date of the check. Only tools that do the same job as ChatPDF are listed, and sponsors never change the order or the scores.

Mehmet Elmicenni, founder of Zekai
Mehmet Elmicenni

Founder of Zekai. Reviews the alternatives pages and the price checks behind them.

About the founder · How Zekai scores tools

JSON copyMarkdown copy
1 · Same job onlyEvery alternative does the same task as ChatPDF; tools for other jobs are left out.
2 · Vendor pages onlyPrices and free limits come from each vendor's own pricing page, never from blogs.
Zekai score0–10, from four published weights: ease 25%, output quality 30%, value 20%, time saved 25%. How we score
3 · Re-checkedA price older than 35 days is re-read or the page falls back to an older version.
Change log

  • Page rebuilt on v6; all prices re-read on vendor pages.

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