Text Diff for Teachers
Sunday night, planning for the week, and the LMS will not accept the 30 MB scanned packet you just built. If you work as one of the teachers, you have been there. Confileo's Text Diff tool highlights every difference between two pieces of text — free, in your browser, with your files deleted automatically the moment you are done.
Start Using Text Diff NowWhy Teachers use Text Diff
Day to day, teachers handle lesson plans, worksheets, exam papers, student handouts, grading rubrics and permission slips — exactly the kind of files this tool is built for.
- Merging a week of worksheets and answer keys into one printable packet for the class.
- Shrinking a scanned exam so it fits inside the school LMS upload limit.
- Converting a Word lesson plan into a locked PDF that students cannot accidentally edit.
- Preparing materials at home on a personal laptop without paid software.
How to text diff in 3 steps
- 1Paste the original text on one side.
- 2Paste the new version on the other.
- 3See every addition and deletion highlighted instantly.
Built for the way teachers work
- ✓Free for every classroom — no licence, no procurement request.
- ✓Works on whatever device is in front of you, school-issued or personal.
- ✓Student data and permission slips are deleted right after processing.
Text Diff — Frequently asked questions
Is Text Diff free for teachers?
Yes. Free for every classroom — no licence, no procurement request. There is no signup, no trial and no watermark on your files.
What kind of files can teachers use Text Diff for?
Text Diff works with the documents teachers handle every day — lesson plans, worksheets, exam papers, student handouts, grading rubrics and permission slips. A common case: Merging a week of worksheets and answer keys into one printable packet for the class.
Can it compare long documents?
Yes. Paste large blocks of text and every change is highlighted line by line.
Is my text uploaded anywhere?
No. The comparison runs in your browser; nothing is sent to a server.
How do I compare two versions of a text or document?
Paste the original on one side and the new version on the other, and every addition and deletion is highlighted instantly.
Does it highlight small changes like a word or symbol?
Yes. Differences are highlighted line by line, including the smallest edits between the two texts.
What is text comparison used for?
Reviewing contracts before and after edits, tracking changes in code or articles, and confirming differences between versions.
Can it compare code or formatted text?
Yes. Paste plain text or code and the line-by-line diff shows exactly what changed.