Explainpaper

Highlight a confusing line in a paper, get a plain-English fix.

Research & Data Freemium
Researched · Published · Reviewed
RECATOOLS Score
6 / 10
Capability
6
Value for money
6
Ease of use
8
ASEAN readiness
6
API quality
Founded
2022
HQ
San Francisco, California
Users
200k+ users
Launched
Jul 2026
Developer
Aman Jain

Overview

Explainpaper lets you upload a paper's PDF, highlight any passage you don't follow, and get a plain-English explanation grounded in that paper's own context. Free for unlimited highlights; Pro ($16/mo) adds full-paper summaries and better models.

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Pricing

Pricing shown for reference only. These figures reflect RECATOOLS research as of 11 Jul 2026 and may be out of date or incomplete. This is not financial or purchasing advice — always confirm the current price on the provider’s official website before making any decision.

Free
$0
Unlimited highlight explanations
  • Follow-up questions
  • Zotero import
  • Basic AI model
Teams
Custom
Team management + priority support
  • Team admin
  • Priority support
  • Volume pricing

Use cases

Understanding unfamiliar statistical methods in papers outside your expertise Learning the meaning of field-specific jargon when entering a new research area Preparing to write a literature review by deeply understanding foundational papers
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ASEAN Perspective

Explainpaper in Southeast Asia

ASEAN-region availability and pricing notes coming soon. Drop the editorial team a note via /contact/ if you can supply local context (Singapore/Malaysia/Indonesia/Thailand/Vietnam).

RECATOOLS Verdict

Explainpaper does one thing: upload a paper, highlight a passage that's losing you, and get a plain-English explanation tied to that specific paper rather than a generic textbook definition. Follow-up questions turn it into something closer to a reading tutor. The free tier covers unlimited highlights; Pro is $16/mo for full-paper summaries and better models. Four years after its 2022 launch, though, the signs of momentum have faded — no blog posts or changelog since 2025, an empty GitHub org, and its co-founder's LinkedIn no longer lists the company. It still works, and there's nothing wrong with using it, but ChatGPT, Claude, and NotebookLM now do the same highlight-and-explain job plus far more, which is a tough spot for a single-feature tool with no visible momentum behind it.

Independent AI-assisted assessment by RECATOOLS.

What people say

Explainpaper still works, but nobody seems to be home. The site loads, billing runs, and the core trick is unchanged since its 2022 launch: upload a paper, highlight a passage you don't follow, and get an explanation written specifically against that paper's own argument rather than a generic definition pulled from nowhere.

The free tier covers unlimited highlights and follow-up questions; Pro is $16 a month for full-paper summaries and better underlying models, with a 7-day trial that asks for a card upfront. That part is straightforward enough.

What's less reassuring: there's no changelog or blog post since 2025, the company's GitHub organization has zero public repositories, and co-founder Aman Jha's own LinkedIn no longer lists Explainpaper as his current work. None of that means the product is dead — it isn't — but it reads like a small team that has moved on to other things while the subscription billing keeps running in the background.

That matters more now than it did in 2022, because ChatGPT, Claude, and NotebookLM all do the highlight-and-explain trick today, plus considerably more, for users who already pay for one of them anyway. Explainpaper's context-aware explanations are still a nice touch for a first pass through a dense paper, but there's little reason to pick a single-purpose, seemingly under-maintained tool over an assistant you're already using for everything else.

Summary of public user & expert reviews, compiled by RECATOOLS.

Notable facts

  • Explainpaper went viral after a tweet from a researcher who said it had allowed them to understand a field-changing paper in 30 minutes that had confused them for weeks.
  • The tool explains not just words but conceptual relationships — 'why does this formula work?' rather than just 'what does this symbol mean?'.
  • Explainpaper was built by a solo developer who noticed that even experts struggle to read papers outside their specific subfield.

Frequently asked questions

Is Explainpaper free?
Yes. 5 paper uploads per month on the free tier.
Can Explainpaper explain mathematical equations?
Yes. It can explain what a formula means conceptually and how it is used in the paper's context.
Does Explainpaper work for medical papers?
Yes. It works across all scientific disciplines.
Can I ask follow-up questions?
Yes. The chat interface allows asking deeper questions about any explanation.
Does Explainpaper handle non-English papers?
Primarily English papers. Non-English support is limited.

About this listing

Researched on
Published on
Last reviewed

This entry was compiled from publicly available data including Explainpaper's official website, press releases, documentation, and reputable third-party publications. RECATOOLS is not affiliated with Explainpaper unless explicitly stated.

Data accuracy

Third-party AI tools update their pricing, features, availability, and policies frequently. Information here may be outdated by the time you read this — we make reasonable efforts to keep listings current, but cannot guarantee absolute accuracy.

For the latest details, please refer to Explainpaper directly →

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