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Open-source voice dictation for Android

Speak naturally. Own your data.

turns what you say into clean, polished text in the apps you already use on your Android phone. Bring your own API key. There is no account, no sign-up, and nothing is stored on our servers.

DownloadView on GitHub

Android 14 or newer · v1.5.0 · 27.9 MB. Sideloading needs restricted settings allowed. Setup guide

Messages

Listening

You said

um hey so can you like grab milk on the way? actually oat milk, the blue one

Inserted

Can you grab the blue oat milk on the way?

Works across every app

Tap the floating bubble and speak. The words land where you are already writing.

Apps where you can dictate with , such as:

Google

GmailDocsSheetsKeepCalendarChatDriveMeet

Work

SlackOutlookTeamsNotionLinearJiraDocsGitHub

Social

MessagesWhatsAppInstagramXLinkedInTelegramRedditDiscord

Why it matters

Bring your own API key. No account. Your data stays under your control.

  1. 01

    You own the keys

    Works with xAI Grok out of the box, or any provider with OpenAI-style transcription and chat APIs.

  2. 02

    Nothing is stored on our side

    OSSFlow has no servers of its own. Audio goes only to the API you choose, then it is deleted from your phone. History stays on the device. Your provider's policy still applies.

  3. 03

    It cleans up your speech

    Filler words come out. False starts get fixed. Natural speaking turns into text that is ready to send.

  4. 04

    Works across every app

    Dictate into messaging, email, notes and browsers.

  5. 05

    Open source

    The code is public under GPL-3.0. Inspect it, modify it, and build it yourself.

  6. 06

    Privacy by design

    The app has no telemetry. Built for people who want modern voice dictation without handing their speech to a closed service.

Compared with closed dictation apps

  • Account required

    No
    Popular dictation apps
    Usually

  • Data stored by the vendor

    No
    Popular dictation apps
    Usually yes

  • Model choice

    Grok or any OpenAI-style API
    Popular dictation apps
    Usually the vendor's model

  • Pricing

    Free software + your API cost
    Popular dictation apps
    Subscription with limits

  • Source code

    Open
    Popular dictation apps
    Closed

Who it’s for

People who want the speed and polish of modern voice dictation on Android, without an account, without vendor lock-in, and without sending their speech to a service they do not control.

is open source. Bring your own API key. Own your data.

Personal dictionary, history, writing style and custom instructions.

DownloadView the source on GitHub