Free Synthesia.io AlternativesAI Video Generators & Text to Speech Services like Synthesia.io

The best free alternative to Synthesia.io is Stable Video Diffusion. It's not free, so if you're looking for a free alternative, you could try Stable Video Diffusion or NaturalReader. If that doesn't suit you, our users have ranked more than 50 alternatives to Synthesia.io and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Synthesia.io are Pika Labs, Mirage Studio, LOVO and Amazon Polly.

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Alternatives list

  1. Open source generative AI video model enabling transformation of text and image prompts into vivid, cinematic scenes at customizable frame rates with 14 or 25 frame outputs, suitable for media, entertainment, education, and marketing content creation.

    48 Stable Video Diffusion alternatives

    Cost / License

    • Free Personal
    • Open Source (MIT)

    Application type

    Platforms

    • Online
     
  2. NaturalReader icon
     22 likes

    Natural Reader is a professional text to speech program that converts any written text into spoken words. The paid versions of Natural Reader have many more features.

    153 NaturalReader alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Google Chrome
     
  3. Runway icon
     8 likes

    Creative suite provides over 30 AI tools for generating images, editing video and audio, fine-tuning style, mood, and resolution, erasing and replacing image regions, expanding images, manual or AI-powered video edits, and supports real-time team collaboration.

    79 Runway alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • iPhone
     
  4. Pika Labs icon
     9 likes

    AI-driven tool to transforms text into videos, requiring no editing skills. Effortlessly create engaging, captivating visuals that capture audience attention by simply typing desired text. Embrace imagination through accessible, imaginative video animation.

    51 Pika Labs alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • iPhone
     
  5. Mirage Studio icon
     2 likes

    Meet the world's first AI model designed to generate UGC content. Mirage by Captions generates original actors with natural expressions and body language—completely free from licensing restrictions.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
     
  6. LOVO icon
     14 likes

    AI voice platform features 60+ emotional voices in multiple languages and accents for commercial-grade text-to-speech, supports voice cloning for personal use, offers APIs for workflow integration, enables digital preservation, and fits various audio projects.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  7. Amazon Polly icon
     5 likes

    Amazon Polly uses deep learning technologies to synthesize natural-sounding human speech, so you can convert articles to speech. With dozens of lifelike voices across a broad set of languages, use Amazon Polly to build speech-activated applications.

    41 Amazon Polly alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Software as a Service (SaaS)
    • Amazon Web Services
     
  8. Fliki icon
     4 likes

    Convert text into realistic speech or short-form video with synthetic AI voices, over 700 options in 65+ languages, automatic subtitles, and fast web-based tools ideal for social, educational, e-learning, and marketing content while improving accessibility.

    33 Fliki alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Software as a Service (SaaS)
     
  9. HeyGen icon
     4 likes

    Transforms text into professional, browser-based HD videos using AI, offering 300+ voices in 40+ languages, scene merging, customizable visuals and music, quick production, unlimited downloads, and easy collaboration for marketing, training, or onboarding purposes.

    65 HeyGen alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • iPhone
    • iPad
     
  10. Creatus icon
     6 likes

    Creatus.ai is a transformative AI-powered text-to-video application designed to revolutionize content creation for small and medium-sized businesses. This innovative platform leverages advanced natural language processing, lip-sync, and machine learning technologies to...

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
     
  11. Create an outline of ideas, review AI content suggestions and pick your spokesperson.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  12. Free open source AI voice cloning and text to speech synthesis. Clone a voice in 5 seconds to generate arbitrary speech in real-time.

    43 Real-Time Voice Cloning alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • Linux
    • Python
     
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