Flashlight

by Meta AI

Don’t want to install Flashlight? Drop the file here.

The first 20 minutes of any recording are transcribed free: a recording up to 20 minutes transcribes in full, a longer one is previewed, and a pack from $6 (500 minutes) transcribes the rest and opens every export, and credits never expire.

Meta's C++ ML library — homed wav2letter.

Linux, macOS  ·  free

TL;DR

Best for researchers needing wav2letter-style fast CNN decoders. Pricing: free.

Category
Open source
License
MIT
Stars
★ 5.5k
Last push
2026-06-22
Pricing
free
Platforms
Linux, macOS

What it is

Header-only C++ ML library used by wav2letter++. BSD-3-Clause.

Best for: Researchers needing wav2letter-style fast CNN decoders.
Watch out for: Build pipeline complex; community shrunk after wav2vec.

Install / use

What people actually do with Flashlight-style transcription

The tool is the means. These are the jobs — each one priced at published rates, each one wired up on its own page.

Wire it into Amazon S3n8nMake.comGoogle DriveZapierSlack

Features

Speaker diarizationNo
Word-level timestampsYes
Streaming / real-timeNo
Languages supported40
HIPAA eligibleNo

Links

GitHub repo ↗

Flashlight vs Whipscribe

FeatureFlashlightWhipscribe
CategoryOpen sourceTranscription APIs
Pricingfree$6–$24 one-time packs (credits never expire) · first 20 minutes free
Speaker identificationNoNamed in the summary, key quotes and chapters
Word timestampsYesYes
StreamingNoNo
Languages4099
PlatformsLinux, macOSWeb, API, MCP

Alternatives to Flashlight

Frequently asked about Flashlight

Is Flashlight free?

Yes. Flashlight is free and open source.

Does Flashlight work on Mac, Windows and Linux?

Flashlight runs on Linux and macOS. It is not listed for other platforms; check the vendor for anything beyond Linux and macOS.

How do I install Flashlight?

Clone and run it from source: `git clone https://github.com/flashlight/flashlight`. Expect to install its dependencies yourself — the README has the exact steps per OS.

How many languages does Flashlight support?

Flashlight lists 40 languages.

Does Flashlight identify different speakers?

No. Flashlight does not label speakers; a conversation comes back as one continuous text. If you need speaker labels, that is a separate tool or a different service.

Does Flashlight give word-level timestamps?

Yes — Flashlight produces timing per word, which is what subtitle cues and clip boundaries need.

Can Flashlight transcribe live audio?

No — Flashlight works on finished files, not a live stream.

Is Flashlight HIPAA compliant?

Flashlight does not claim HIPAA compliance. For PHI, run it on infrastructure you control or choose a service that will sign a BAA.

What are the limitations of Flashlight?

Build pipeline complex; community shrunk after wav2vec.

Who is Flashlight best for?

Researchers needing wav2letter-style fast CNN decoders.

Does Flashlight run offline?

Flashlight runs on your own machine — it is open source, so nothing leaves the computer unless you configure it to.

Can I use Flashlight in the browser?

No — Flashlight is a Linux and macOS application, not a web app. You install it rather than sign in to it.

Where is the Flashlight source code?

On GitHub at github.com/flashlight/flashlight. It is maintained by Meta AI.

What kind of tool is Flashlight?

In this directory Flashlight is filed under framework, research, cpp as a open-source tool.

What are the alternatives to Flashlight?

There is a side-by-side page at /tools/flashlight-alternatives comparing Flashlight with the closest tools in the same category on price, platform and features.

Whipscribe is a hosted transcription service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.

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