Submit Your Writing With Total Peace of Mind.
Never face false cheating accusations from professors, editors, or clients. Strip hidden watermarks from ChatGPT, Gemini, and Claude in seconds.
Ready to purify your copy?
Paste raw text or test our engine with a sample article.
What Sahfee Cleans From Your Text
How detection systems spot AI writing—and how Sahfee restores natural human flow.
Repetitive AI Phrasing
Detectors evaluate token frequency curves to catch predictable words like 'delve', 'tapestry', and 'testament to'. Sahfee alters token probability weights to mirror authentic human vocabulary.
Predictable Sentence Flow
AI writing maintains a flat, robotic cadence. Sahfee disrupts uniform n-gram sequences by alternating short, punchy statements with complex clauses to create natural, human-grade perplexity.
Invisible Tracking Artifacts
AI platforms can embed invisible zero-width spaces (ZWSP, ZWNJ) and formatting overrides to track generated copy. Sahfee deterministically scrubs these hidden bytes instantly.
We Use Sahfee On Our Own Work
Every sentence on this website and our publications is audited and cleaned using Sahfee before it goes live. We stand 100% behind the results we deliver.
Never Fear AI Detection Accusations Again
Choose the model that fits your workflow. Bring your own API key for lifetime zero-subscription ownership, or pick up instant managed credits.
FREE PREVIEW
Perfect for testing single paragraphs and immediate verification.
- Up to 350 words per run
- Zero-width character scrubber
- Local heuristic perturbation
- No sign-up or credit card required
BYOK LIFETIME
Connect your OpenAI, Claude, or Gemini key. Pay once, use forever.
- Unlimited word count & transformations
- Full access to Claude 3.5, GPT-4o & Gemini
- Zero server storage: 100% private to your device
- Instant license key delivery
- All future app updates included
MANAGED PACK
No API keys required. We handle everything behind the scenes.
- Clean ~50 full essays or blog posts
- No technical setup or API keys needed
- Frontier model performance (Gemini / GPT)
- Credits never expire
Frequently Asked Questions
How does the BYOK (Bring Your Own Key) model work?
With our one-time lifetime pass ($39), you paste your OpenAI, Claude, or Google Gemini API key. Your key is stored solely on your device. You pay $0 in recurring subscriptions and get unrestricted usage at your provider's direct rates.
Does Sahfee store or train on my writing?
No. Your writing is never used to train AI models, and we do not store your submitted text. For BYOK users, data stays strictly between your browser and your AI provider. For managed credit pack users, text is processed transiently in memory to perform the rewrite and never logged or stored.
Will my formatting and citations be preserved?
Yes. Our multi-stage pipeline is engineered to retain technical terminology, factual arguments, numerical citations, and paragraph structure while breaking statistical watermark signals.