Restreamer

Self-hosted live streaming infrastructure, honestly reviewed. No marketing fluff, just what you actually get when you run it yourself.

TL;DR

• What it is: Open-source (Apache-2.0) self-hosted streaming server — publish live video from OBS, cameras, or any RTMP/SRT source to YouTube, Twitch, Facebook, Vimeo, and anywhere else simultaneously, without paying a middleman [README].
• Who it’s for: Content creators, churches, event producers, and small media teams currently paying for a multistreaming SaaS (Restream, Castr, Dacast) who have a VPS or Raspberry Pi and want the bill gone.
• Cost savings: Restream.io’s paid plans start at $19/mo and scale to $299/mo for business teams [1][2]. Restreamer self-hosted is a one-time Docker deploy on a $5–10/mo VPS with no per-stream or per-channel fees.
• Key strength: Ships as a single Docker image with a wizard-driven UI, built-in HLS/RTMP/SRT servers, automatic Let’s Encrypt, hardware encoding support (Nvidia CUDA, Intel VAAPI, Raspberry Pi), and a fully Swagger-documented REST API — more infrastructure than most SaaS alternatives expose [README].
• Key weakness: No cloud-hosted fallback if your server goes down during a live event. The project documentation is dated in places, active development appears slower than competitors, and there is no built-in browser-based studio for multi-guest productions like Restream Studio or StreamYard offer [README][website].

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What is Restreamer

Restreamer (by datarhei, not to be confused with Restream.io — they are completely different products) is a self-hosted streaming server built on FFmpeg. You run it on your own machine or VPS, point your encoder at it, and it redistributes your stream to any number of RTMP, SRT, or HLS destinations simultaneously. The tagline is accurate: “A really nice and free alternative for handling live streams” [README].

The project sits at 4,950 GitHub stars under an Apache-2.0 license. It ships as a Docker image with a web UI, wizard configuration, built-in media servers, automatic HTTPS, and a REST API. The company behind it, datarhei, also sells a managed cloud version for teams that want the software without the infrastructure headache.

What makes it structurally different from Restream.io or Castr is that the software runs on your server. There is no traffic routing through a third-party relay. Your stream goes from your encoder to your server to the platforms directly. For live events with any sensitivity — church services, internal company broadcasts, investor calls — that data-sovereignty angle matters. You’re not handing a feed of your event to a SaaS vendor’s infrastructure.

The product’s primary audience in practice is anyone running recurring live streams who has done the math on a Restream bill and realized that $49–$99/mo is a lot for “forward this RTMP stream to three platforms.” The self-hosted alternative costs the price of a cheap VPS.

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Why people choose it over Restream.io and other SaaS options

The case for Restreamer is almost entirely economic. The SaaS alternatives — Restream.io, Castr, Dacast — are well-built products with real advantages (managed reliability, browser-based studios, scheduling, analytics). But the pricing compounds. Restream.io charges $49/mo for the Professional plan (8 channels, 10 hours recording) and $99/mo for Premium [1]. Capterra reviewers on Restream give it 4.4/5 for value for money — not 4.8/5 — with several explicitly calling out the price as the main complaint [2][3].

One Capterra reviewer with 2+ years on Restream wrote: “What I don’t like about Restream is the price, since there’s a lot of platforms that offer the multi-streaming option” [3]. Another reviewer left Restream for StreamYard citing reliability problems and confusing sign-on for guests [2]. These are the two real reasons people go looking for alternatives: cost and feature gaps that matter to their specific workflow.

Restreamer solves the cost problem completely. It doesn’t solve the browser-studio or guest-invite problem — that’s a different product category. If you’re using Restream.io primarily for its Restream Studio (multi-guest browser-based production), Restreamer is not the right replacement. If you’re using Restream.io primarily as an RTMP relay — OBS to multiple platforms — Restreamer eliminates that bill entirely [README].

The other reason that comes up in the self-hosted community is control over stream quality. Restream.io routes your video through its servers, adding a relay hop. A Capterra reviewer noted: “The quality of the livestream video is very dependent on your own bandwidth so even if using it for making a recorded video, the quality is not as good as it could be” [2] — a limitation of the SaaS relay model that disappears when you control the infrastructure directly.

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Features

Based on the GitHub README and documentation scrape:

Core streaming engine:

• HTTP/S (HLS), RTMP/S, and SRT server — all three protocols built in [README]
• Accepts input from OBS, any RTMP encoder, SRT sources, USB cameras, IP cameras, and local devices [README]
• Publishes simultaneously to YouTube Live, Twitch, Facebook, Vimeo, Wowza, and any RTMP/SRT endpoint [README]
• Option to mux a separate audio channel to the video stream [README]
• Multiple audio/video inputs, outputs, protocols, and codecs via FFmpeg [README]

UI and configuration:

• Web-based UI with wizard-driven setup — documented as simplified and beginner-accessible [README][website]
• Built-in VideoJS player for embedding on your website [README]
• Configurable publication website for streaming without embedding [README]
• Creative Commons content licensing support [README]
• Live demo available at demo.datarhei.com [README]

Infrastructure:

• Automatic Let’s Encrypt HTTPS certification [README]
• Viewer count and bandwidth monitoring with configurable bandwidth limits [README]
• Prometheus metrics export [README]
• Server and process logging [README]

Hardware acceleration:

• Raspberry Pi hardware encoding (MMAL/OMX) — separate Docker image [README]
• Nvidia CUDA GPU encoding — separate Docker image [README]
• Intel VAAPI hardware encoding — separate Docker image [README]

Developer features:

• REST API (JSON) — 100% documented via Swagger [README]
• Architecture documented for extension [website]
• Environment variables for configuration [website]

Privacy:

• GDPR compliant out of the box — no third-party tracking, no audience data saved [README]

What it does NOT have (compared to Restream.io):

• No browser-based studio for multi-guest productions
• No built-in scheduling for pre-recorded streams
• No chat aggregation across platforms
• No clip creation or stream recording storage
• No mobile app

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Pricing: SaaS vs self-hosted math

Restream.io SaaS (the comparison baseline):

• Basic: $0/mo — 2 channels, Restream branding on streams [1]
• Standard: $19/mo — 5 channels, 2 team seats, 6-hour recording [1]
• Professional: $49/mo — 8 channels, 4 team seats, 10-hour recording [1]
• Premium: $99/mo — 8 channels, 10 team seats, 20-hour recording [1]
• Business: $299/mo — listed but full details not captured in available sources [1]

Restreamer self-hosted:

• Software license: $0 (Apache-2.0) [README]
• VPS to run it on: $5–10/mo (Hetzner CX11 or equivalent)
• Your time to deploy: 30–60 minutes if you know Docker

datarhei managed cloud: Available as an alternative to self-hosting, but pricing not publicly available in scraped sources — contact datarhei directly. The website mentions “sign up on our website and use our ready-to-go datarhei Service” [website] without quoting rates.

Concrete savings math:

A content creator or small media team publishing to 3–4 platforms (YouTube, Twitch, Facebook, one more) needs at minimum the Standard tier at $19/mo, more realistically Professional at $49/mo if they want recording. Over 12 months:

• Restream.io Standard: $228/year
• Restream.io Professional: $588/year
• Restreamer on a $6 Hetzner VPS: $72/year — saving $156–$516/year

For a church or nonprofit streaming weekly services to 4+ platforms, the Premium tier ($99/mo = $1,188/year) is not uncommon. Self-hosting that same workload costs $72/year in infrastructure plus a one-time setup. The math is why r/selfhosted threads about multistreaming almost always end up at Restreamer or a similar alternative.

The limitation of this math: it assumes you can set up Docker. If you can’t, and you don’t have anyone to help, add the cost of a one-time deployment service to the calculation.

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Deployment reality check

Restreamer deploys as a single Docker run command. The README’s quick-start for AMD64 is nine lines including port mappings [README]. There are four official image variants: standard (AMD64/ARMv7/ARM64), Raspberry Pi, Nvidia CUDA, and Intel VAAPI. This is good packaging — you pick the image that matches your hardware and it handles the rest.

What you actually need:

• A Linux VPS (or Raspberry Pi, or any machine running Docker)
• Docker installed — that’s it for a basic setup
• A domain name + DNS if you want a public HTTPS endpoint
• Port forwarding if you’re running on a home server behind a router (ports 8080, 8181, 1935, 1936, and 6000/udp) [README]

What Let’s Encrypt handles automatically:

• HTTPS certificate provisioning and renewal [README]

What can go sideways:

• The --privileged flag is required for USB cameras and local devices [README] — this is standard but worth knowing before you lock down your container security
• Network sources that can’t be reached may need --security-opt seccomp=unconfined [README] — a workaround that suggests some FFmpeg network behavior conflicts with default Docker seccomp profiles
• The documentation has not been updated in approximately three years based on the GitBook timestamps on the scraped pages [website] — the information appears accurate but the project doesn’t appear to have an active docs maintenance culture
• Hardware acceleration variants (CUDA, VAAPI) require the appropriate host drivers already installed — Restreamer doesn’t configure those for you [README]

Realistic time estimate: Technical user who knows Docker — 15–30 minutes to a working stream. Non-technical user following a guide, including domain setup — 2–3 hours. No Linux experience at all — budget a full afternoon or have someone else deploy it.

The project’s GitHub shows 4,950 stars and regular Docker pulls (badge on the repo). It’s not a dead project, but it’s also not a fast-moving one. The last major version bump documented is v2, and the website references “v2” screenshots without mentioning a v3 roadmap.

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Pros and Cons

Pros

• Actually free to run. Apache-2.0 license means zero software cost, no channel limits, no bandwidth fees — just your VPS [README].
• No stream routing through third parties. Your video data goes encoder → your server → platforms. No SaaS relay, no third-party data exposure [README].
• Hardware acceleration built in. Nvidia CUDA, Intel VAAPI, and Raspberry Pi hardware encoding are first-class supported variants — not afterthoughts [README].
• Raspberry Pi native. Runs on ARMv7/ARM64, including a dedicated Raspberry Pi image. Genuinely usable on a $35 device for low-bandwidth streams [README].
• Full Swagger API. 100% REST API documentation means you can automate start/stop, swap destinations, and monitor bandwidth programmatically [README].
• GDPR compliant by default. No audience data collected or stored, no third-party tracking embedded [README].
• Prometheus metrics. Plugs into standard observability stacks if you’re already running Grafana/Prometheus [README].
• SRT support. SRT (Secure Reliable Transport) is the modern low-latency protocol for contribution feeds. Having it natively is a meaningful advantage over solutions that only support RTMP [README].

Cons

• No browser-based studio. If you want to go live from a browser with guests on screen, this doesn’t do that. You need OBS or another encoder on the production side [README].
• No built-in chat aggregation. One of Restream.io’s strongest features — unified chat from all platforms in one interface — is absent [README vs Restream features].
• No scheduling for pre-recorded content. Restream.io lets you upload a video and schedule it to go live later. Restreamer does not have this feature; it’s a live relay, not a media server [README].
• Documentation is aging. The official docs site appears to have had minimal updates in roughly three years. Getting answers for edge cases may require digging through GitHub issues [website].
• No analytics or viewer insights. You get bandwidth monitoring and viewer counts, but nothing like the sentiment analysis and engagement metrics that Restream.io provides [README vs source 1].
• Single-server reliability. If your VPS goes down during a stream, the stream dies. Restream.io runs on managed cloud infrastructure with their own uptime guarantees. Self-hosting transfers that risk to you.
• Smaller community than n8n or other marquee self-hosted tools. At 4,950 stars it’s a real project with a real user base, but you won’t find the same volume of community tutorials, Docker Compose snippets, and forum help as you would for Jellyfin or Nextcloud.

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Who should use this / who shouldn’t

Use Restreamer if:

• You’re paying $19–$99/mo to Restream.io or Castr primarily as an RTMP relay and you want that bill gone.
• You broadcast recurring live events (weekly church services, product launches, gaming streams) where setup-once-run-forever is more valuable than cutting-edge production features.
• You have a Raspberry Pi sitting idle that could become a dedicated streaming server.
• Your stream content has any privacy sensitivity and you don’t want it routing through a SaaS vendor’s infrastructure.
• You want GPU-accelerated encoding without paying per-hour cloud transcoding fees.
• You’re already comfortable with Docker and can deploy in an afternoon.

Skip it (stay on Restream.io or StreamYard) if:

• You produce multi-guest shows from a browser — Restream Studio and StreamYard handle this; Restreamer doesn’t.
• You need scheduled playback of pre-recorded content to go live automatically.
• You want unified chat management across platforms during a live event.
• You have zero Linux/Docker experience and no one to help — the self-hosted cost advantage disappears if you pay a developer more than a year’s SaaS subscription to troubleshoot it.
• Your events are high-stakes enough that single-server downtime risk is unacceptable without a backup plan.

Consider Restreamer alongside another tool if:

• You need both RTMP relay (Restreamer) and a browser studio (OBS + Restreamer, or Restreamer + Owncast for the audience-facing side).

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Alternatives worth considering

• Restream.io — the main SaaS comparison. Managed, browser studio, chat aggregation, scheduling, analytics. Starts at $19/mo, gets expensive fast. Closes the source, routes your video through their infrastructure [1][2][3].
• Castr — Restream.io competitor, 4.7/5 on Capterra, starts at $12.50/mo [3]. Slightly cheaper, similar SaaS tradeoffs.
• Owncast — open-source live streaming to your own audience rather than multistreaming to platforms. Different problem, but pairs well with Restreamer.
• Ant Media Server — open-source but commercially licensed beyond the community edition. Starts at $109/mo for hosted [3][4]. More powerful for WebRTC and large-scale distribution, heavier to operate.
• nginx-rtmp — the bare-metal alternative. More configuration work, no UI, but maximum flexibility and tiny resource footprint. Worth considering if Restreamer’s wizard approach still feels too opaque.
• PeerTube — if the goal is hosting and distributing your own video library (not live multistreaming), PeerTube is a better fit.

For the specific use case of “I pay $49/mo to Restream.io to push OBS output to 4 platforms,” the realistic alternative is Restreamer vs Castr. Castr’s lower SaaS price makes the self-hosting math slightly tighter, but Apache-2.0 with no recurring bill still wins at any meaningful volume.

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Bottom line

Restreamer is exactly what it says: a self-hosted streaming relay that takes an input and publishes it to platforms without charging you per-channel or per-month. It does that job reliably, supports modern protocols (SRT, HLS), runs on everything from a Raspberry Pi to a GPU-accelerated server, and costs nothing beyond your VPS. The trade-offs are equally clear — no browser studio, no scheduling, no chat aggregation, documentation that hasn’t kept pace with the product. If your workflow is “OBS → relay → multiple platforms” and you’re paying $20–$100/mo for that relay, Restreamer closes that case in an afternoon. If your workflow involves multi-guest video production, live scheduling, or platform chat management, the SaaS alternatives earn their fee.

For a non-technical founder who wants this deployed without the afternoon of Docker spelunking, that’s exactly the kind of one-time setup work upready.dev handles for clients.

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Sources

1. Software Advice — Restream Software Reviews, Demo & Pricing (405 reviews). https://www.softwareadvice.com/video-management/restream-profile/
2. Capterra — Restream Reviews 2026, Verified Reviews, Pros & Cons (405 reviews, 4.6/5). https://www.capterra.com/p/184117/Restream/reviews/
3. Capterra Australia — Restream Cost & Reviews 2026 (405 reviews). https://www.capterra.com.au/reviews/184117/restream
4. Capterra Australia — Restream Software Listing (includes alternative comparisons). https://www.capterra.com.au/software/184117/restream
5. Capterra UK — Restream Pricing, Cost & Reviews 2026. https://www.capterra.co.uk/software/184117/restream

Primary sources:

• GitHub repository and README: https://github.com/datarhei/restreamer (4,950 stars, Apache-2.0 license)
• Official documentation: https://docs.datarhei.com/restreamer
• Docker Hub image: https://hub.docker.com/r/datarhei/restreamer
• Live demo: https://demo.datarhei.com/ui