Writing · 7 tools · updated Oct 15, 2026
Polish what I already wrote
DeepL leads with an evidence score of 25/100, ahead of Grammarly (25) and ProWritingAid (11). 7 of 7 can be used free. Best for natural-sounding European translations: DeepL.
Ranked by evidence — GitHub stars, Hacker News mentions, release activity and how much you can use for free. Recomputed nightly. How the score works.
+ Translations read more naturally than Google Translate for German, French, Spanish and other European languages, and it translates whole documents with formatting intact.
− Covers far fewer languages than Google Translate and the free tier caps document size.
+ Works in nearly every text field on every platform, so corrections and tone suggestions follow you into Gmail, Slack and Word.
− Suggestions can flatten a distinctive voice and the premium nag prompts in the free tier are constant.
+ Reports on pacing, dialogue tags, repeated words and sticky sentences go far beyond what Grammarly checks.
− The volume of reports is overwhelming at first and the desktop apps can be sluggish on long manuscripts.
+ The paraphraser's mode slider (fluency, formal, simple, creative) is the fastest way to rework a clumsy paragraph.
− Paraphrased text sometimes changes meaning, and its humanizer and detector are unreliable against serious detection tools.
+ Reverso Context shows how a phrase is actually used in bilingual sentences, which is what language learners need.
− The free site is ad-heavy and the plain translator is weaker than DeepL.
+ Color-coded highlighting makes dense writing visibly obvious in seconds, with no account needed for the free editor.
− It optimizes for short, plain prose and will nag you about complexity that is sometimes appropriate.
+ Shows several rewrite options per sentence so you keep authorship instead of accepting one AI version.
− Free plan allows only a handful of rewrites per day.
Head to head: DeepL vs Grammarly DeepL vs ProWritingAid Grammarly vs ProWritingAid
Missing a tool? It gets added when it shows up in the release feed with real traction, not by request.