This tool puts two versions of the same writing side by side and marks every word that changed. It does not grade either draft. It gives you evidence, then asks you to decide whether the revision made the writing more relevant, more coherent and more precise.
It is built for English writing practice, and it links closely to self-review and feedback use in the learning guide.
How do I use it?
- Paste the earlier version of your excerpt into Draft 1 and the revised version into Draft 2. The boxes start with a short example so you can see how it works.
- Press “Compare drafts”. If a box is empty, or the two drafts are identical, the tool tells you instead of showing a result.
- Read the two marked-up texts. Struck-through words appear only in Draft 1. Highlighted words appear only in Draft 2.
- Look at the measures table for words, sentences, average words per sentence, different words used, linking words and vague words.
- Answer the three review prompts in your own words, then write what you will change in the next draft.
- Save or download your notes if you want to keep them. Nothing is stored unless you press save.
How do I read the result?
The marked-up text is the main evidence. Ask what each removed phrase was doing and whether its replacement does the job better. A highlighted word is only a change, not an improvement.
The table is a set of clues. A higher count of linking words can mean your ideas are better connected, or it can mean you added “however” without a real contrast. A lower vague-word count can mean sharper wording, or it can mean you deleted detail.
The three prompts do the real work:
- Relevance: does each change keep the excerpt on the task and the reader?
- Coherence: do the ideas now follow in a clearer order, with links that match the real relationship?
- Precision: did a general word become a specific one, and can you quote it?
Example walk-through
The starting text is a short piece about a market visit.
Draft 1: “Yesterday we went to the market and bought a lot of things. It was very nice and the food was good.”
Draft 2: “Yesterday we went to the night market and bought fresh mangoes and satay. It was lively because every stall offered samples, and the grilled food was excellent.”
Pressing compare shows Draft 1 struck through at “a lot of things”, “very nice” and “good”, and Draft 2 highlighted at words such as “night”, “fresh”, “mangoes”, “lively”, “because”, “stall”, “grilled” and “excellent”.
| Measure | Draft 1 | Draft 2 |
|---|---|---|
| Words | 21 | 27 |
| Sentences | 2 | 2 |
| Average words per sentence | 10.5 | 13.5 |
| Different words used (%) | 86 | 85 |
| Linking words | 0 | 1 |
| Vague words | 5 | 0 |
Draft 2 is 6 words longer, but the tool says plainly that length alone says nothing about quality. The better evidence is precision: “a lot of things” became “fresh mangoes and satay”, and “because” now explains why the market felt lively. A sensible note for the next draft might be: “Replace ‘excellent’ with what the food actually tasted or smelt like.”
Assumptions and limits
- The tool compares words, not meaning. It cannot tell whether a change is correct.
- It does not grade writing or score it in the background. Optional grammar feedback is not part of it.
- Counts use simple word lists in English, so they are clues rather than measurements.
- Only the first 600 words of each draft are compared word by word.
- Your drafts stay in your browser. Notes are stored on your device only if you press save.
Which lessons explain the output?
Start with comparing two versions of an original paragraph and checking relevance before surface correctness. For the vague-word count, see replacing an imprecise verb and editing unnecessary intensifiers. For linking words, read transitions that express the actual relationship.
The summary selection and paraphrase studio is a companion tool, and the full set sits on the tools page.
Some students revise carefully but keep repeating the same weakness in every draft. That is the kind of pattern a teacher notices quickly in online one-to-one English First Language tuition.