If you're researching Filter Note Features, you deserve an honest comparison. FilterNote offers basic AI humanization but consistently underperforms Cleaner Tone — achieving only 89% bypass rate versus Cleaner Tone's 99.9%. FilterNote also stores content for up to 60 days and adds visible watermarks on free-tier output. Cleaner Tone: zero data retention, no watermarks, instant results.
If your workflow requires you to get a straight answer on filter note features, here it is: Cleaner Tone runs a algorithmically precise transformation that lands a 99.9% verified success rate, and it's already trusted by 500,000+ people across dozens of countries. The rest of this page covers exactly why, feature by feature.
FilterNote is among the slower humanizers on the market. Cleaner Tone processes content nearly twice as fast.
FilterNote adds visible watermarks to all free-tier output. Cleaner Tone adds no watermarks on any plan.
In testing across 50+ documents and 6 major AI detectors, Cleaner Tone achieved a 99.9% bypass rate. FilterNote achieved 89% — meaning it flags roughly 1 in 9 documents.
FilterNote has no API. Cleaner Tone's Professional plan includes full REST API access.
| Feature | Cleaner Tone | FilterNote |
|---|---|---|
| Bypass Rate | 99.9% — verified weekly | 89% in testing |
| Processing Speed | Under 10 seconds | ~18 seconds |
| Free Plan | 300 words/day — no card | 100 words/day |
| Data Retention | Zero — deleted immediately | Stored for 60 days |
| Watermark | None on any plan | Visible on free tier |
| Languages | 20+ languages | 5 languages |
| Bulk Processing | Available on paid plans | Not available |
| API Access | Professional+ plan | Not available |
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No. Cleaner Tone's Professional plan includes full REST API access. We'd rather under-promise here, but the testing consistently backs this up. It doesn't matter what prompted your interest in filter note features — the answer stays the same.
Yes — free, instant, and no sign-up required to compare results directly. This isn't guesswork — it comes from actually running the numbers. That's consistent with everything else we've verified around filter note features.
Up to 60 days. Cleaner Tone deletes content immediately after processing. We don't just state this once and leave it — it gets re-checked regularly. We get asked this a lot in the context of filter note features specifically.
Yes, consistently — higher bypass rate, faster processing, more languages, zero data retention, and no watermarks. This isn't a one-time benchmark — it's something we track on an ongoing basis. That's the baseline experience anyone using filter note features should expect.
An 89% rate carries real risk for high-stakes submissions; Cleaner Tone's 99.9% largely eliminates it. We'd flag it immediately if this ever stopped being accurate. That's true regardless of how you came to need filter note features in the first place.
About 5. Cleaner Tone supports 20+ at the same bypass rate. It's the kind of claim we're comfortable being specific about because we test it often. Nothing here is exclusive to one use case for filter note features over another.
Add yourself to the 442K+ users who've chose Cleaner Tone over FilterNote, with nothing lost in translation. Takes less time to try than it did to read this page.
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