Multistreaming
Stream to multiple platforms at once, from one dashboard.
Send one feed from your encoder and reach up to 30 destinations by plan, with higher counts available on request: YouTube, Facebook, LinkedIn, Twitch, your own website, and custom RTMP or SRT endpoints.
Built for operators who need reach across third-party platforms and control through owned playback.
Trusted across professional media, enterprise, and public organizations
Business outcomes
The workflow should create value, not more operational risk.
01Increase reach
Go live on multiple streaming platforms at once and reach viewers where they already watch, from one source.
02Reduce encoder load
Send one contribution feed to Castr instead of pushing every destination locally.
03Preserve ownership
Combine social reach with an embedded player on your website.
Capabilities that matter
Distribute one source without losing operator control.
Send a single contribution feed to multiple destinations, keep your own embedded player, and monitor the whole operation from one multistream platform. Destination counts and pull workflows vary by plan.
One-click platform integrations
Log in once to connect YouTube, Facebook Pages and Groups, Twitch, and LinkedIn, then reuse those connections for every broadcast. TikTok and Instagram connect through custom RTMP.
Custom RTMP and SRT destinations
Reach any endpoint that accepts a custom RTMP or SRT URL, beyond the built-in integrations.
Destination management
Configure and reuse destination sets across recurring broadcasts.
Your own player
Keep a direct audience experience on your website.
Cloud distribution
Castr distributes your stream to each connected destination from the cloud, so your local connection only carries one upload.
Recording
Every broadcast records automatically, up to 72 hours per stream, and stays downloadable for three days. Included on every plan.
Need the complete matrix? See capability availability and plan tiers in one place.
Compare plans and capabilities →Destinations, distribution, and monitoring
What multistreaming includes on each plan.
Multistreaming is more than sending one stream to several platforms: it includes owned playback, pull workflows, and operational monitoring around each broadcast.
Reach and distribution
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Up to 30 destinations by plan
6 on Starter, 10 on Standard, 20 on Premium, and 30 on Ultra and Events, counted across your whole account, with higher counts available on request.
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Custom RTMP and SRT destinations
Reach endpoints beyond the built-in integrations with a custom RTMP or SRT destination.
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Your own player
Keep a direct player on your website alongside social reach.
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Metadata management
Set the stream title and description for YouTube and Facebook before you go live, without opening either platform.
Ingest, pull, and monitoring
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Multiple ingest
Publish over RTMP, RTMPS, SRT, and WHIP, and pull from RTMP, HLS, RTSP, and MPEG-TS.
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SRT/RTMP pull links
Pull your feed into other encoders and destinations.
Included on Standard and higher.
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Stream alerts
Get notified by SMS or webhook when a stream goes offline.
Included on Premium and higher.
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Stream health monitoring
Monitor active stream health from the operator dashboard.
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Analytics and support
Viewer analytics with 30-day retention and 24/7 human support, on every plan.
Simultaneous destination counts and pull workflows vary by plan, so confirm the tier that matches your operation.
Compare destination limits by planWhat multistreaming is and how to do it
How multistreaming works, and what makes a multistreaming platform.
Multistreaming (or multi-streaming) means broadcasting one live source to several platforms at the same time, such as YouTube, Twitch, Facebook, LinkedIn, and your own site, without running a separate encoder for each. A multistreaming platform takes one contribution feed and fans it out for you.
How to stream on multiple platforms
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Send one feed
Publish a single RTMP, SRT, or WHIP feed from OBS, vMix, or a hardware encoder to Castr.
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Connect destinations
Add the social platforms you want to reach plus any custom RTMP or SRT endpoints.
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Go live everywhere at once
Castr distributes your source to every connected destination simultaneously, so you stream on all platforms at once from a single feed.
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Keep an audience you own
Embed the same stream on your own website instead of relying only on social platforms for reach.
What to look for in a multistreaming platform
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Destination count
How many simultaneous destinations a plan allows. Castr supports up to 30, with higher counts available on request.
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Pass-through by default
Castr relays your source to each destination as your encoder sent it, so what Castr hands YouTube matches what left your studio. Add cloud transcoding or adaptive bitrate when you want Castr to re-encode.
Transcoding and ABR on Premium and higher.
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Cloud distribution
Distribution happens in the cloud, so your upload bandwidth carries one feed, not many.
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Recording and monitoring
Record each broadcast and watch stream health while you are live.
Multistreaming vs the alternatives
Multistreaming vs running separate streams or a Restream-style tool.
There are a few ways to set up multiplatform streaming and reach several platforms at once. Multistreaming through the cloud is usually simpler on your bandwidth and your encoder than the alternatives.
Multistreaming vs separate streams
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One feed, not many
Cloud multistreaming sends a single contribution feed to Castr, which distributes it, so your upload bandwidth carries one stream instead of one per platform.
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Lighter encoder load
Running a separate stream to each platform locally multiplies encoder and bandwidth load. Multistreaming avoids that by distributing in the cloud.
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Consistent everywhere
Every destination receives the same produced feed, so no platform gets a different version of your show. Each platform still applies its own transcoding and playback delay.
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Simulcast pre-recorded video
Schedule an uploaded video to broadcast live to the same destinations, with no encoder running.
Multistreaming platform vs Restream-style tools
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Your own player, not just social
Beyond social platforms, Castr keeps an embedded player you own on your website, so you are not only renting reach on someone else's platform.
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Recording and monitoring
Record each broadcast and monitor stream health while live, from the same dashboard.
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One combined chat overlay
Sync comments from YouTube, Facebook Pages, and Twitch into a single chat overlay you can drop into your encoder or open in a browser.
Requires connecting those platforms as direct integrations rather than custom RTMP.
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Where Restream fits better
Restream includes a browser-based studio with remote guests, while Castr expects a feed from your encoder or from Castr cloud production.
Seen enough to test it? Start a 7-day trial with no credit card, or talk through your exact setup first.
Customer workflows
See how video teams put the platform to work.
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With more than 1,000 live events a year to cover, ClipMyHorse.TV uses Castr to manage recurring channels, event streams, commentary versions, and partner delivery through one consistent workflow.
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The whole streaming lifecycle, from live delivery and paid viewing to replay and content protection, consolidated from separate systems into one workflow.
Read the storyOperator fit
Designed for teams distributing one show to several audiences.
The strongest fit is a team that runs recurring broadcasts to the same set of platforms, with a named owner for the stream and a real consequence if a destination drops.
Review your workflow with CastrStrong qualification signals
- Recurring multi-platform shows
- Client-specific destination sets
- Streaming to multiple platforms plus your own website
- Bandwidth-constrained production locations
Switching to Castr
Move off your current platform without dropping a broadcast.
You do not have to cut over blind. Run Castr in parallel with your current provider while you test, and let our video team confirm the fit before anything switches.
Run in parallel
Point a test encoder at Castr and multistream to a private test destination while your current tool keeps serving viewers. Nothing changes for your audience until you are ready.
Map the workflow
Our video team maps your current destinations, reconnects YouTube, Facebook, Twitch, and LinkedIn, and re-enters stream keys for custom RTMP or SRT endpoints, then confirms which plan covers your destination count.
Cut over with support
Switch your embeds and destinations when you are confident, with 24/7 human support on hand during your first live events on Castr.
Build the complete workflow
Connect this capability to the rest of your operation.
Live streaming
Add your own player and professional delivery.
Explore
Production agencies
Manage destinations across client projects.
Explore
Video API
Add and remove destinations on any stream from your own code.
Explore
Stream monitoring
Watch source and destination health while you are live.
Explore
Castr vs Restream
Compare multistreaming, owned playback, and monetization.
Explore
Pricing
Compare destination and concurrency limits.
Explore
Questions before you choose
Evaluate the workflow with confidence.
Feature and plan availability changes by tier. Use the full matrix for comparison, or let our team validate a complex setup.
What is multistreaming?
Multistreaming (also written multi-streaming, and sometimes called simulcasting) means you broadcast to multiple platforms at the same time, such as YouTube, Twitch, Facebook, and LinkedIn, plus your own website, from one live source. Castr takes a single contribution feed and distributes it to every connected destination.
How do I stream to multiple platforms at once?
Send one feed from your encoder to Castr, connect the destinations you want to reach, and go live on multiple platforms at once. Castr distributes the source to each platform in the cloud, so you publish once instead of running a separate stream for every platform.
Can you stream on multiple platforms at once?
Yes. Connect each destination in the dashboard, send one feed to Castr, and you can live stream to multiple platforms at once without extra upload bandwidth, because the distribution happens in the cloud. Plans include 6 to 30 simultaneous destinations, counted account-wide, with higher counts available on request.
How do I multistream to Twitch, YouTube, and TikTok?
Connect Twitch and YouTube through their direct integrations in the Castr dashboard, then add TikTok (and Instagram, if you use it) as a custom RTMP destination with the server URL and stream key from the platform. Send one contribution feed from OBS, vMix, or another encoder, and Castr streams to Twitch, YouTube, and TikTok simultaneously while you also keep your own player embedded on your website.
What is the best multistreaming platform?
The best multistreaming platform depends on how many destinations you need, whether you want your own embedded player, and whether recording, monitoring, and custom RTMP endpoints matter. Those are the points to check when you compare multistreaming platforms. As multistreaming software, Castr combines multistreaming to up to 30 destinations by plan, with higher counts available on request, plus playback on your own website and recording from one dashboard.
How many destinations can I use?
6 on Starter, 10 on Standard, 20 on Premium, and 30 on Ultra and Events, counted across your whole account, with higher counts available on request. Direct integrations and custom RTMP or SRT destinations both count toward the total.
Is multistreaming free?
Castr offers a 7-day trial with no credit card required, so you can test multistreaming before paying. Free multistreaming tools exist, but they usually cap you at a couple of destinations and watermark the stream. Every Castr plan includes an embedded player for your own website and cloud recording alongside your social destinations.
Does multistreaming affect quality?
No. Castr passes your source through to each destination as your encoder sent it, and because the distribution happens in the cloud, your connection uploads one stream instead of several, which usually helps quality. Each platform still re-encodes the feed for its own players.
Can I use custom RTMP destinations?
Yes. Custom RTMP and SRT destinations are available alongside the direct integrations, and both count toward your plan's destination total.
Does multistreaming replace my encoder?
You still send a source feed from an encoder, but Castr handles the outbound distribution to configured destinations.
Can I evaluate Castr before subscribing?
Yes. Castr offers a 7-day Starter trial with no credit card required. Advanced workflows and higher limits may require a paid tier or a technical consultation.
Move from evaluation to a working broadcast
Map Castr to the workflow your team runs today.
Bring your destination list and encoder setup, and we will confirm which plan covers it.