FastCast

Native Windows Screen Recorder and Live Streaming App

It is designed for creators, educators, tutorial makers, coaches, and solo streamers who want a simpler setup than OBS for focused single-scene recording and streaming workflows.

FastCast Free is free during the open beta and records at 1080p60. An optional paid FastCast Pro license unlocks 1440p/4K recording, 120 fps, and multistreaming to up to three platforms at once. This public repository provides release downloads and version metadata only. The FastCast source code is private.

Download FastCast v0.10.0 for Windows x64 (MSI installer)

Portable ZIP

FastCast at a glance

FastCast is a native Windows screen recorder and live streaming app.

It is built for:

• Local MP4 recording
• Desktop audio capture
• Microphone capture
• Webcam picture-in-picture overlay
• Custom RTMP/RTMPS streaming through stream keys
• Multistreaming to up to three platforms from one capture (Pro)
• Manual update checks through this public release feed
• Privacy-conscious creator workflows without telemetry or accounts

FastCast is not trying to replace every OBS feature. It is focused on a simpler, single-scene recording and streaming experience for Windows creators.

Who FastCast is for

FastCast is a good fit if you want:

• A simple Windows screen recorder
• A lightweight OBS alternative for basic creator workflows
• Local recording with desktop and microphone audio
• Webcam picture-in-picture overlay
• Custom RTMP/RTMPS live streaming
• A per-user MSI installer or portable ZIP
• A privacy-conscious recorder with no telemetry or accounts
• A focused single-scene workflow instead of a full broadcast studio

Who should still use OBS

OBS is still better if you need:

• Multiple scenes and complex scene switching
• Plugin ecosystems
• Advanced filters
• Browser sources
• Platform OAuth workflows
• Studio/broadcast production workflows
• Deep troubleshooting and advanced capture configuration

FastCast is for users who want a simpler local recording and custom RTMP/RTMPS streaming workflow on Windows.

FastCast facts

• Product: FastCast
• Developer: Calvin Sturm
• Category: Windows screen recorder and live streaming app
• Platform: Windows 10 20H1 / 2004+ and Windows 11, x64
• Current status: Open beta
• Price: FastCast Free is free during the open beta; FastCast Pro is $19 until v1.0, then $29
• Source code: Private
• Distribution: Per-user MSI installer and portable ZIP
• Primary use: Local screen recording and custom RTMP/RTMPS streaming
• Main benefits: Simple setup, local recording, webcam overlay, desktop audio, microphone capture, custom streaming, privacy-conscious design
• Privacy: No telemetry, no accounts, no crash upload, no background polling, no auto-update
• Best for: Creators, tutorial makers, educators, coaches, and solo streamers who want a focused Windows recording/streaming tool
• Not designed for: Full OBS replacement, complex scene production, plugin workflows, multistreaming, or platform OAuth

Download FastCast for Windows

Download the latest FastCast Open Beta MSI or portable ZIP from the Releases page.

Latest release: v0.10.0 (Open Beta)

• FastCast-0.10.0-win-x64.msi — recommended per-user installer; no administrator prompt.
• FastCast-0.10.0-win-x64.msi.sha256 — MSI checksum.
• FastCast-0.10.0-win-x64.zip — portable build. Extract and run fastcast.exe.
• FastCast-0.10.0-win-x64.zip.sha256 — portable ZIP checksum.

The v0.10.0 packages were verified by the maintainer on Windows (October 29, 2026): launch, a recording with microphone and desktop audio that plays back cleanly, mic noise reduction, and OBS Virtual Camera as a webcam. The v0.9.0 packages have a maintainer-confirmed manual smoke pass (September 10, 2026).

Requirements

• Windows 10 20H1 / 2004+ or Windows 11
• x64 system
• GPU with hardware H.264 encoding strongly recommended
• Software encoding fallback is included but slower

SmartScreen note

The current Open Beta build is unsigned, so Windows SmartScreen may show an "Unknown publisher" warning. Click More info → Run anyway only if you trust the download source.

Verify the download

Each release package includes a .sha256 sidecar so you can verify it was not corrupted or modified.

Expected SHA-256 values:

MSI: 0b25d656bbd2d37c5a0c8f7433822f7144623e5f62237f1a93a0286e60647c4d
ZIP: 7091ae729c33b02a3efa48c18525a8786e41934c917454ae129220e65c90683e

Verify in PowerShell:

Get-FileHash .\FastCast-0.10.0-win-x64.msi -Algorithm SHA256
# or: Get-FileHash .\FastCast-0.10.0-win-x64.zip -Algorithm SHA256

The printed hash should match the corresponding value above.

What's new in v0.10.0

Security fixes. A stream key pasted into a server URL is no longer saved to disk, and keys are masked in error messages and the log. If you ever pasted a key into a URL, consider resetting that stream key on the platform.

A background behind your camera. Put an image, a solid colour or a looping video behind your keyed webcam. No full-screen monitor needed.

Reduce background noise. One click on the Mic row removes fan, hum and keyboard noise from your microphone. It runs on your PC, and it is free for everyone.

OBS Virtual Camera as a webcam. Use OBS, or a face-blur or effects tool built on its virtual camera, as your FastCast camera.

Custom destination limits. Set the bitrate and keyframe interval a server asks for.

Fixes. A blocked microphone no longer loses the recording, and Stop no longer hangs on a stalled destination.

Full release notes

What was new in v0.9.2

Hotfix: long recordings save again. In v0.9.1, a recording longer than about an hour could sit on Saving… for hours, and closing FastCast then left an MP4 that would not play. Saving after Stop now finishes in seconds.

Recovery. A recording that did not save can be rebuilt from its .fastcast-parts folder: select it under Recent recordings.

Pro price. FastCast Pro is $19 until v1.0, then $29. The app now shows this price.

Full release notes

What was new in v0.9.1

Hotfix: Go Live works again. In v0.9.0, Go live from a destination row stopped with "add a Stream URL" even when the row showed Ready. Destination rows (YouTube, Twitch, Kick and the rest) go live again.

Clearer Stream card. The stream key, name and server URL boxes now show what goes in them, with a tip on hover.

Full release notes

What was new in v0.9.0

Destination names. A destination row on YouTube or Twitch can now carry a name — "Main channel", "Gaming channel" — so two rows with different stream keys are tellable apart at a glance.

Get key ↗. Each destination row links to the platform's own stream-key page (YouTube, Twitch, Kick, Facebook); copy there, paste back.

Custom Instant Replay lengths (Pro). Any window from 15 seconds to 5 minutes. Instant Replay itself stays free, including all four of its original lengths.

Founding Supporter Sale. Pro is now pay what you think it's worth, from $1, $29 suggested.

Cleaner interface. Simpler destination setup, clearer licensing controls, more room for device names, and less duplicate UI.

Full release notes

What was new in v0.8.0

Instant Replay. FastCast can keep the last 15 to 300 seconds of your screen in memory and save it as an MP4 after the fact. Press Ctrl+Alt+F8 and the clip is on disk.

FastCast in the notification area. Arm Replay, save a clip, or reopen the window with no FastCast on screen.

Full v0.8.0 release notes

Command-line recording control (new in v0.5.1)

FastCast v0.5.1 adds command-line start/stop control of a running FastCast window — useful for scripts, Stream Deck buttons, and schedulers:

fastcastc --start-record              # start recording
fastcastc --start-record --monitor 2  # record display 2 first
fastcastc --stop-record               # stop the active recording

How it behaves:

• The commands control an already-running FastCast window and trigger the same guarded Start/Stop action as the button and the Ctrl+Alt+F9 hotkey, so a recording can never be double-started or stopped when idle. FastCast is never launched automatically: if it is not running, the command says so and exits nonzero.
• --monitor N records display N (the "Display N" entries of the app's Screen list). The choice sticks like a manual selection, replaces any window-capture selection, and an unknown display number is rejected.
• Exit codes are script-friendly: 0 for success and for harmless no-ops (already recording / nothing to stop), nonzero for failures (FastCast not running, start failed, unknown display). Output is plain text with no log noise.
• The release ZIP includes fastcastc.exe next to fastcast.exe. Use fastcastc from scripts and shells: it waits for the command and exits with its exit code. fastcast.exe accepts the same flags, but as a GUI app the shell does not wait for it.
• Like everything else in FastCast, this is local-only: no background service, no polling, no network.

Privacy

FastCast does not include telemetry, accounts, crash upload, background polling, or automatic updates.

The in-app Check for Updates action only checks this public release feed. It does not download or install updates.

Stream keys are not saved to disk.

Support bundles are created only when you click Save Support Bundle. They are saved locally and redacted before being written.

Free and Pro

FastCast Free remains free during the open beta and covers simple 1080p60 recording and streaming: monitor/window capture, microphone and desktop audio, webcam overlay, custom RTMP/RTMPS streaming, and local redacted support bundles.

FastCast Pro is $19 until the v1.0 launch, when the price rises to $29. It is activated inside the app. Pro unlocks higher-resolution recording (1440p / 4K), 120 fps capture where your capture and encoder hardware support them, multistreaming to up to three destinations, and advanced encoder controls.

License activation is user-initiated and local-first: no accounts, no telemetry. The license key is sent only to the license endpoint of the store that issued it when you click Activate, is stored redacted on your machine, and a limited offline grace period covers previously-activated devices that go offline.

FAQ

What is FastCast?

FastCast is a native Windows screen recorder and live streaming app for local recording, webcam overlay, desktop audio, microphone capture, and custom RTMP/RTMPS streaming.

Is FastCast an OBS alternative?

FastCast can be used as a simpler OBS alternative for creators who mainly need single-scene screen recording, webcam overlay, desktop/mic audio, and custom RTMP/RTMPS streaming. OBS is still better for complex scenes, plugins, browser sources, multistreaming, and advanced broadcast workflows.

Is FastCast free?

FastCast Free is free during the open beta and covers simple 1080p60 recording and streaming. FastCast Pro is $19 until the v1.0 launch, then $29. Pro unlocks 1440p/4K recording, 120 fps capture where hardware supports it, multistreaming to up to three destinations, and advanced encoder controls.

Does FastCast Pro require an account?

No. FastCast Pro is a license key you paste into the app. There are no accounts; activation is user-initiated, the key is stored redacted on your machine, and a limited offline grace period covers activated devices that go offline.

Is FastCast open source?

No. FastCast source code is private. This public repository provides release downloads and version metadata only.

Does FastCast collect telemetry?

No. FastCast does not include telemetry, accounts, crash upload, background polling, or automatic updates.

Does FastCast save stream keys?

No. Stream keys are not saved to disk.

What platforms does FastCast support?

FastCast targets Windows 10 20H1 / 2004+ and Windows 11 on x64 systems.

Does FastCast support RTMP and RTMPS streaming?

Yes. FastCast supports custom RTMP/RTMPS streaming.

Can I start and stop recording from the command line?

Yes, since v0.5.1. fastcastc --start-record and fastcastc --stop-record control a running FastCast window with script-friendly exit codes, and --monitor N picks which display to record. FastCast is never auto-launched and nothing runs in the background. See "Command-line recording control" above.

Does FastCast replace OBS?

No. FastCast is a focused single-scene recorder and streamer. OBS remains better for advanced production workflows.

Reporting issues

If something breaks, click Save Support Bundle in FastCast and send the generated ZIP with a short description of what happened.

Source code

FastCast source code is private and proprietary.

This repository is for public release downloads and version metadata only. FastCast ships a proprietary LICENSE.txt and a THIRD_PARTY_NOTICES.txt inside both release packages.

GitHub Pages

This repository includes a static GitHub Pages landing page in index.html.

See docs/GITHUB_PAGES.md for setup instructions.