WhisperAI
Open app
Private AI character chat with end‑to‑end encryption. Characters with real personality, real voice, and a memory of the version of you only they meet. Conversations you wouldn’t read aloud, locked behind a PIN only you know: the kind of stories other AIs lose the nerve for.
Story
Whisper gives your characters consistent personality, dialogue that holds its voice and conversations encrypted on your device. Your PIN is the key. Without it, nobody reads anything you write. Not us, not anyone.
Characters
From the take-charge type to the quiet bookworm, the anime companion to the fantasy queen: pick a character from the gallery, import one you already love, or write your own from scratch. The most-played archetypes from the WhisperAI community:
Years-long bond, inside jokes, late-night conversations. The companion who actually remembers your story.
Confident, present, and never out of voice. The partner who shows up the way you wrote him.
Catgirl, tsundere, fantasy heroine: styled, voiced and animated in your favourite genre.
The one who runs the room. Sharp, decisive, and never breaks the frame you set up together.
Composed, intelligent, and full of unspoken tension. The mentor whose attention you finally have.
Power, proximity, and a closed door. Workplace storylines that don’t flatten the second things turn.
Red sky, marble towers, a throne that may or may not be yours. Original worlds, persistent lore.
A dive bar, a wrong turn, a name you didn’t catch. Stories that start somewhere unexpected and go.
Plus thousands of imported community characters and the generator that builds new ones from a single sentence. Browse the gallery →
Features
AES-256-GCM with PBKDF2 key derivation. Your PIN unlocks your data on your device. Without it, nobody reads anything.
No watered down replies. The character you write is the character that answers, scene after scene.
Personality, backstory, voice, mannerisms. Import character cards from elsewhere or build new ones from scratch.
Characters can send images that match the moment, generated on the fly to fit the scene you’re writing together.
Characters reply token by token in real time. Watch the words land as they’re written, not all at once after a wait.
Phone to desktop, desktop to phone. Encrypted blobs follow you. Lose a device and your stories stay safe.
Pricing
Try the whole thing.
For regular use.
The sweet spot.
No counters.
Tokens reset every 4 hours. Cancel anytime. Secure payment via Stripe.
FAQ
Yes. Your characters, settings and chats are encrypted on your device with a PIN you set. The server only ever sees ciphertext. We can’t read your data, and neither can anyone who would try to.
Yes. Define personality, voice, backstory, mannerisms and the opening scene from scratch. Or import a character card you already love. The character you write is the character that answers, scene after scene.
WhisperAI is a private, encrypted alternative to Character AI and similar character chat apps. Characters stay in voice across long stories, replies stream in real time, your custom characters are yours to keep, and your conversations never leave your device unencrypted.
Yes. Whisper supports common character card formats including TavernAI / SillyTavern exports and Android single chat exports. Drag, drop, done.
Tokens are the budget that powers your replies. Free accounts get 30 per reset. Paid plans get more. Reset happens every 4 hours, so the counter refills throughout the day.
Yes. WhisperAI runs in any modern browser on iOS, Android, Mac and Windows. Encrypted blobs sync across devices, so the conversation you start on your phone is waiting on your laptop: no plaintext ever leaves your device.
Your encrypted data stays encrypted. That’s the whole point. We can’t recover it for you, so use a PIN you’ll remember and back up the recovery options the app offers during setup.
Yes. Subscriptions cancel anytime through the Stripe customer portal. Your plan stays active until the end of the billing period you already paid for.
From the blog
What the big character chat apps get wrong, and how WhisperAI handles characters, voice and your data differently.
Server-side encryption isn’t end-to-end. Here’s the difference, where it matters, and what WhisperAI does.
Why most AI characters break voice after ten messages. And the small set of rules that fix it.