Revise like you’re the one marking.

Errata takes your notes and writes practice answers with a few mistakes slipped in. Your job is to find them and fix them.

Try ErrataHow it works

Find the mistake. Correct it. Learn from it.

A demonstration of an Errata exercise: the cursor first picks a phrase that is already correct, which shakes and costs an attempt. It then finds the deliberate mistake, types a correction, sees that it is correct, and reviews the explanation from the study material before continuing.

What is Errata?

A revision tool. You give it your own study material, and instead of questions to answer, it gives you answers to mark.

It’s the work a teacher does when marking, and it shows you quickly which parts of a topic you actually know.

How does Errata work?

  1. Add your material

    Upload notes as a PDF, Word document, text file or photo, or just type a topic.

  2. Find the mistakes

    Errata writes an answer from that material and slips a few mistakes in. You get three attempts to find them.

  3. Correct them

    Click a phrase you think is wrong and type what it should say. Errata tells you straight away if your fix is right.

  4. Check the source

    Every correction comes with the part of your notes that backs it up, so you know why.

What makes Errata different?

Spotting a mistake asks for something most revision doesn’t: you have to know a topic well enough to notice when a sentence sounds right but isn’t.

  • Write answers from memory, corrected to Mark an answer from your notes
  • Flip through flashcards, corrected to Catch what sounds right but isn’t
  • Re-read your notes, corrected to Check every fix against your source

Who is Errata for?

Students revising for exams, and anyone else learning from their own notes, course material or documents.

Start re-reading marking your notes.

Start revising with Errata