Alternatives
Self-hosted alternatives to Synthesia
Projects in the registry that can run on your own hardware and serve at least one of the same use cases as Synthesia.
- Source
- Registry relations over fetched repository records — the evidence sits on each repository page
- Verified
- Evidence not verified
- Confidence
- High
01How this list was built
- Compared against
- Synthesia
- Delivery
- SaaS products
- Shared use cases
- AI video workflow, Marketing workflow, Translation
- Selection rule
- open source, or self-hostable, and shares a use case
- Candidates found
- 7
02Alternatives
ComfyUI
Self-hosted projects
Node-based interface for image and video generation models, where a pipeline is an explicit graph that can be saved, versioned and re-run. Runs locally on your own GPU.
- Repository
- comfyanonymous/ComfyUI
- Stars
- 133,870
- Licence
- GPL-3.0
- In stacks
- 0
Shares: Ai video workflow · Marketing workflow
Dify
Hybrid — hosted or self-hosted
Platform for building LLM applications: visual workflow editor, retrieval pipelines, agent tools, prompt management and an API layer. Available self-hosted or as a managed cloud service.
- Repository
- langgenius/dify
- Stars
- 153,448
- Licence
- Other
- In stacks
- 1
Shares: Marketing workflow
LMDeploy
Model servers
Serving toolkit from the InternLM team with its own inference engine and quantisation tooling, and strong coverage of Chinese open-weight model families.
- Repository
- InternLM/lmdeploy
- Stars
- 8,082
- Licence
- Apache-2.0
- In stacks
- 0
Shares: Translation
n8n
Hybrid — hosted or self-hosted
Workflow automation tool with several hundred integrations, branching logic, code steps and AI nodes. Can be self-hosted, which is why it appears in on-premise automation stacks.
- Repository
- n8n-io/n8n
- Stars
- 202,375
- Licence
- Other
- In stacks
- 4
Shares: Marketing workflow
Open WebUI
Self-hosted projects
Self-hosted chat interface for local and hosted models, with user accounts, groups, document upload and built-in retrieval. Runs in Docker against Ollama, vLLM or any OpenAI-compatible endpoint.
- Repository
- open-webui/open-webui
- Stars
- 149,870
- Licence
- Other
- In stacks
- 5
Shares: Translation
PaddleOCR
Libraries
OCR toolkit with detection, recognition and layout models, including Chinese and other East Asian scripts, plus table and formula recognition. Runs offline on CPU or GPU.
- Repository
- PaddlePaddle/PaddleOCR
- Stars
- 88,941
- Licence
- Apache-2.0
- In stacks
- 0
Shares: Translation
WhisperX
Libraries
Whisper-based transcription pipeline adding word-level timestamps, forced alignment and speaker diarisation. Runs locally on GPU for batch transcription of recordings.
- Repository
- m-bain/whisperX
- Stars
- 24,121
- Licence
- BSD-2-Clause
- In stacks
- 1
Shares: Translation
03Repository facts
| Repository | Stars | Health |
|---|---|---|
| comfyanonymous/ComfyUIThe most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface. | 134k | Maintenance 80%, Releases 60%, Contributors 50%, Issues 63%, Community 100%75 |
| langgenius/difyBuild Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack. | 153k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 94%, Community 100%72 |
| InternLM/lmdeployLMDeploy is a toolkit for compressing, deploying, and serving LLMs. | 8.1k | Maintenance 80%, Releases 60%, Contributors 50%, Issues 26%, Community 78%66 |
| n8n-io/n8nFair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations. | 202k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 95%, Community 100%72 |
| open-webui/open-webuiUser-friendly AI Interface (Supports Ollama, OpenAI API, ...) | 150k | Maintenance 60%, Releases 60%, Contributors 50%, Issues 99%, Community 100%72 |
| PaddlePaddle/PaddleOCRTurn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages. | 89k | Maintenance 60%, Releases 40%, Contributors 50%, Issues 97%, Community 99%68 |
| m-bain/whisperXWhisperX: Automatic Speech Recognition with Word-level Timestamps (& Diarization) | 24k | Maintenance 60%, Releases 40%, Contributors 50%, Issues 91%, Community 88%65 |
04Ask about your own case
Which alternative is right depends on how many people will use it, what the data is and what you can operate. Ask and the answer is researched for your organisation.