Comparison · For Non-Native English Writers
CleanerTone vs EssayFilter for Non-Native English Writers
A focused look at fluency support for ESL and non-native English writers, comparing CleanerTone and EssayFilter on output naturalness / readability and related dimensions.
CleanerTone and EssayFilter are both AI text humanizers, but this comparison zooms in on fluency support for ESL and non-native English writers. On our weighted editorial model, CleanerTone scores 8.35/10 overall and EssayFilter scores 8.28/10 — a near-tie once every dimension is weighted together. Zoomed in on output naturalness / readability alone, the two run close (8.6 vs 8.3 out of 10). Scores reflect public site evidence gathered as of 2026-07-26, not a lab-tested detector benchmark.
Output naturalness / readability: CleanerTone vs EssayFilter
Here's what each vendor's own site says relevant to fluency support for ESL and non-native English writers:
| Dimension | CleanerTone | EssayFilter |
|---|---|---|
| Output naturalness / readability | 8.6 | 8.3 |
| Features / UX | 8.2 | 8.1 |
| Overall weighted score | 8.35 | 8.28 |
CleanerTone
CleanerTone markets a free AI humanizer for professional writing with multi-detector bypass claims. It is a required must-cover brand with a verified cleanertone.com homepage.
EssayFilter
EssayFilter markets itself as a free-friendly AI humanizer for students and essay writers, with homepage claims about Turnitin, GPTZero, and Originality.ai. Treat detector percentages as marketing until independently verified.
CleanerTone vs EssayFilter — For Non-Native English Writers FAQ
For for non-native english writers, CleanerTone and EssayFilter are close enough that the free plan and a side-by-side test on your own text should decide it.
The clearest gap is on output naturalness / readability: they're within 0.3 points of each other. Everything else — free plan, pricing, and support — is covered on each brand's full review.
EssayFilter scores higher on pricing value in our model (compare exact plan prices on each official site, since promotions change). Weigh that against output naturalness / readability, where CleanerTone currently rates higher.
Check each vendor's own site directly: https://www.cleanertone.com/ for CleanerTone, and https://www.essayfilter.com/ for EssayFilter. Pricing, free limits, and features can change after our last research pass.