01 · Transcription
Tuba turns photographed handwriting into readable text first, so you can see what the system understood.
Handwritten text correction AI
Photograph handwriting and correct it with AI.
Instead of retyping handwritten pages first, take a photo: Tuba reads the handwriting, transcribes the text, and shows corrections with markings and reasons. Tap a correction and the spot lights up in the photo.
Try four base corrections free
No credit card · up to 2 pages per base correction · no subscription
English · grade 7 · 1 page
My summer holidays
My summer holidays
Last summer we go to the lake with
my family. My brother swim every
day and I read three books. One day
it was raining, so we stay in the
house and played cards. It was the
best holyday ever!
Spot 1 of 4 go went
Transcription · recognized text
Last summer we to the lake with my family. My brother every day and I read three books. One day it was raining, so we in the house and played cards. It was the best ever!
Compare anything unusual with the photo before you correct.
Correction · follow the changes
Last summer we to the lake with my family. My brother every day and I read three books. One day it was raining, so we in the house and played cards. It was the best ever!
Tense · 1
“Last summer” sets the story in the past: past simple “went”.
Tense · 2
Irregular verb in the past simple.
Tense · 3
Regular verb: past simple with -ed.
Spelling · 4
Spelling: “holiday”.
Error analysis · 4 spots
Feedback
What worked well
- Clear timeline from the summer to the outlook.
- Vivid details: the rainy day, cards, books.
Work on this
- Past simple of irregular verbs: went, swam.
- Spelling: holiday.
You review the suggestions. The grade stays with you.
What Tuba does with handwriting
Read first. Correct second.
02 · Correction
Then come markings, reasons, feedback and optional grading suggestions.
03 · Spot in the photo
Tap a correction and Tuba highlights the spot in the photo – on a phone in a loupe at the bottom, full screen if you need it. The AI estimates the position; it shows you where to look.
Photo quality
What remains hard with poor image quality.
If words are cropped, shadows cross the line or the handwriting itself is barely legible, AI can misread it too. With handwriting, the photo is part of the input.
Lay the paper flat and keep the whole page in frame.
Use daylight or even lighting.
Avoid shadows, steep angles and cropped edges.
For dense or unclear handwriting, move closer before taking the photo.
Example
From handwriting to a correction you can inspect.
Illustrative example · English
Example correction
Yesterday I writed1 a story and go2 home.
- ¹ Irregular verb
- wrote
- ² Tense
- went
FAQ
The important limits first.
Can AI read handwriting reliably?
It works much better with readable handwriting and a clear photo. Hard-to-read words, strong shadows or cropped lines remain more difficult — which is why you should compare the recognized text with the original after analysis, then review the correction suggestions.
What happens with poor image quality?
The risk of reading errors increases. A second, straighter photo with better light is usually faster than fixing wrongly recognized words later.
Can Tuba read several handwritten pages together?
Yes. You can upload several pages and Tuba processes them as one coherent submission.
Is this only useful for teachers?
Tuba is built for classroom work, but it is useful whenever handwritten texts should become readable, correctable and visibly marked without manual retyping.
Let Tuba read the handwriting, instead of retyping it first.
Start with 12 free red pens — test handwritten pages, decide for yourself.