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FastClip
Open Beta

Local vertical clip generator for Windows

Turn long videos into vertical clips, locally

FastClip scans long local videos for likely highlight moments, then lets you review and export ready-to-post 9:16 clips with optional captions.

FastClip is a native Windows app that imports a source video, analyzes it with on-device signals, proposes ranked candidate clips, and lets you review and export 1080×1920 MP4s. No uploads, no accounts, no monthly credits: your footage never leaves your machine.

Open beta · Windows 10/11 x64 · Local-only processing

Public beta builds are hosted on GitHub Releases.

How it works

Import, analyze, review, export

FastClip exists for creators with long recordings who need the good moments without scrubbing for an hour. It is built around one loop: it proposes the clips, you make the calls, and everything happens on your machine.

01

Import

Point FastClip at a long local video. It probes the file and creates a resumable project without copying or modifying your source.

02

Analyze

On-device signals like speech density, audio energy, and dead air find the moments worth keeping. No cloud, no credits.

03

Review

A ranked candidate list shows every proposed clip. Preview them, adjust them, and pick the ones you want.

04

Export

Selected clips render to 1080×1920 vertical MP4s, with captions burned in if you want them.

Features

An automated clipping pipeline, not another editor

FastClip is intentionally not a nonlinear editor. There is no multi-track timeline and no compositing: it finds clips, you review them, and it exports clean vertical MP4s.

Fully local pipeline

Analysis, transcription, and export all run on your machine. No uploads, no cloud services, no analytics.

Automatic candidate clips

Variable-duration highlight windows are proposed from acoustic and structural signals, then ranked by speech density, audio energy, dead air, duration fit, and hook openings.

Four workflow modes

Speech, ActionSports, MusicMontage, and ManualPrivate select scoring weights and caption defaults to match the footage.

Deterministic 9:16 export

Center-crop to 1080×1920 MP4 (H.264/AAC) with the same result every time. No surprise re-renders.

Optional burned-in captions

Caption plans compile to burned-in subtitles with three built-in styles, in Auto, Force, or None modes.

Local transcription

Captions are driven by whisper.cpp running on your hardware. Audio never leaves your machine.

Hardware encoding

Exports prefer FFmpeg h264_nvenc and fall back to libx264 automatically when NVENC is not available.

Safe project folders

Each source gets a versioned .fastclip project folder. Source media is referenced by path, never copied or modified.

Workflow modes

Scoring that matches the footage

Each mode selects highlight scoring weights and default caption behavior, so a podcast is not scored like a hockey game.

Speech

Talking videos, podcasts, streams, and lessons. Weighs speech density and hook openings, with captions on by default.

ActionSports

Sports and action footage. Weighs audio energy spikes and crowd moments over dialogue.

MusicMontage

Music and montage sources. Favors sustained energy and rhythm over speech.

ManualPrivate

Makes no content assumptions and never reads transcript text. For footage you want scored with generic signals only.

Captions

Burned-in captions, transcribed on your hardware

Captions are optional and fully local. Transcription runs through whisper.cpp on your machine, drives a caption plan you can regenerate, and gets burned into the export as subtitles.

Caption modes are Auto, Force, and None, so speech footage gets captions by default and montage footage stays clean.

FastClip does not download or bundle models: you choose the local Whisper model it uses.

Clean and readableclean_white
BOLD AND LOUDbold_yellow
POP THE KEY WORDcreator_pop

Privacy

Local-first by design

No uploads. No cloud services. No accounts. No analytics.

Source media never leaves your machine and is never copied or modified. Projects reference it by absolute path, and everything FastClip generates stays in a project folder you can delete.

The ManualPrivate workflow mode goes further: it makes no content assumptions and never reads transcript text at all.

A clip generator, not an editor

There is no timeline, no compositing, and no general-purpose editing model. If a clip needs real editing, export it and finish it in the editor you already use.

Open beta

FastClip is built in Rust with a Tauri and React shell. The source is currently private; public beta builds are hosted on GitHub Releases.

Compare

Where FastClip fits

Cloud AI clipping tools are subscription ecosystems built around uploads and credits. FastClip keeps the core job on your machine.

FastClip is a good fit if you want

  • Clips from long footage without uploading it anywhere
  • No per-minute credits or processing quotas
  • Sports, speech, and music-aware highlight scoring
  • Deterministic 9:16 exports you can rerun
  • Captions transcribed locally, not in the cloud
  • A focused tool instead of a full editor

Cloud tools are still better if you need

  • Team collaboration and shared workspaces
  • Auto-posting and publishing schedules
  • Editing from a phone or browser
  • Cloud storage for your library
  • AI b-roll, reframing, and effects pipelines
  • Mac or Linux support today

Pricing

Free to try, pay once. No subscription planned.

The planned model is simple: the free version analyzes your footage and shows every candidate clip it finds, with a per-project export limit. A one-time FastClip Pro license unlocks the rest.

There are no cloud costs behind FastClip, so there is no reason to charge monthly. No credits, no metering, no account required.

Final pricing will be announced when FastClip leaves beta.

Free (planned)

  • Import and analyze local videos
  • Preview every candidate clip
  • All four workflow modes
  • Export a few clips per project
  • clean_white caption style

FastClip Pro (planned)

  • One-time license, yours for good
  • Unlimited exports and bulk Export All
  • Premium caption styles
  • Same local-only processing

Facts

FastClip facts

A quick reference for the essentials.

ProductFastClip
DeveloperCalvin Sturm (Sturm Technologies LLC)
CategoryVertical clip generator / highlight clipper
PlatformWindows 10 and later, 64-bit
StatusOpen beta, public builds on GitHub Releases
Output9:16 vertical MP4, 1080×1920, H.264/AAC
CaptionsOptional burned-in captions via local whisper.cpp transcription
Processing100% local: no uploads, no cloud services, no analytics
TechnologyRust, Tauri, React, FFmpeg, whisper.cpp
Best forCreators turning long recordings into short vertical clips without uploading footage
Not designed forMulti-track editing, compositing, or replacing a full editor

FAQ

FastClip questions

What is FastClip?
FastClip is a Windows app that turns long local videos into ready-to-post 9:16 vertical clips. It analyzes footage on your machine, proposes ranked highlight candidates, and exports 1080×1920 MP4s with optional burned-in captions.
Does FastClip upload my footage?
No. FastClip is fully local. Analysis, transcription, and export run on your machine, with no uploads, accounts, or analytics. Source files are referenced by path and never copied or modified.
Is FastClip an alternative to cloud AI clipping tools?
FastClip is a local-first alternative to tools like OpusClip, Kapwing, and CapCut for the core clipping job: there are no per-minute credits and footage never leaves your machine. Cloud tools are still better if you need team collaboration, auto-posting, or mobile editing.
Is FastClip a video editor?
No. FastClip is intentionally not a nonlinear editor: there is no multi-track timeline and no general-purpose compositing. It does one job: find, review, and export vertical highlight clips.
How do captions work?
Captions are optional. Local transcription via whisper.cpp drives caption plans that are burned in as subtitles, with clean_white, bold_yellow, and creator_pop built-in styles and Auto, Force, and None caption modes.
When can I download FastClip?
FastClip is in open beta. The latest Windows build is available now on GitHub Releases, and updates are announced on the Fast Series page.
Will FastClip be free?
The plan is a free version for analyzing footage and previewing every candidate clip, with a one-time FastClip Pro license for bulk export and premium caption styles. No subscription and no monthly credits are planned.

Try the FastClip open beta

The first public FastClip beta for Windows is available now on GitHub Releases. FastCast and FastPlay are also available today: both are free, native Windows tools from the same Fast Series.