by Future Tools·Workflow
Images © Future Tools. Used for product review; image policy.
Stands out in the aescripts library for combining AI transcription, multilingual translation, and layered subtitle generation in a single After Effects extension, with compatibility reaching back to CC 2018 and, as of version 2.1.0, added Premiere Pro support.
Voice2Captions is a CEP extension for After Effects that automatically transcribes and subtitles audio using AI. It converts speech into multilingual captions across 99+ languages, working directly inside your timeline. The extension supports Whisper-based transcription and, from version 2.1.0, a Deepgram Nova-3 engine, with optional translation of transcribed content into up to 99 languages.
Captions can be built as single-layer transcription with timeline markers or as multi-layer subtitles for styling and animation. Version 2.1.0 added editable transcription before captions are created, smart line splitting from 1–10 words across 1–2 lines, and built-in text animation presets for After Effects. Finished subtitles export as .srt files, and FFmpeg handles internal audio file conversion.
Transcription runs through either Groq API keys, which are free, or OpenAI API keys, which are paid. The extension works on Windows and macOS, including Intel and Apple Silicon M1, M2, and M3 chipsets, and version 2.1.0 also added Premiere Pro support.
Voice2Captions is best for creators who want to transcribe and subtitle audio inside After Effects across multiple languages.
Voice2Captions is completely free to download and use.
Voice2Captions is compatible with After Effects 2026, 2025, 2024, 2023, 2022, 2021, 2020, CC 2019, and CC 2018, covering current releases along with several older Creative Cloud versions. Version 2.1.0 also added Premiere Pro support for 2020 through 2026. On the operating system side, the extension runs on both Windows and macOS. For exact setup steps and any per-version notes, check the developer's page.
Voice2Captions is fully compatible with macOS on both Intel and Apple Silicon chipsets, including the M1, M2, and M3. It also runs on Windows, so the CEP extension works across both major desktop platforms without being tied to one operating system. Internally it uses FFmpeg to handle audio file conversion during transcription, which runs from within After Effects. To confirm current system details and any prerequisites before installing, the developer's page lists up-to-date requirements.
Voice2Captions works with either Groq API keys, which are free, or OpenAI API keys, which are paid, giving you a choice of provider for the underlying transcription. Version 2.1.0 also added a Deepgram Nova-3 engine alongside the original Whisper-based transcription, so there are multiple engines to pick from. For details on obtaining and entering a key, and on which engine best fits your project, see the developer's page.
Voice2Captions is listed as free in this catalog. Licensing terms can change over time, so for current pricing and any account requirements, check the developer's page rather than relying on this listing alone. Keep in mind that the transcription engines rely on external API keys: Groq keys are free while OpenAI keys are paid, so any provider costs are separate from the extension itself and depend on which engine you choose to use.
Voice2Captions can export subtitles as .srt files, letting you take transcribed captions out of your project for use elsewhere. Inside After Effects it can also generate single-layer transcription with timeline markers, or multi-layer subtitles that give you more room for styling and animation. Version 2.1.0 added editable transcription before captions are created, plus smart line splitting from 1–10 words across 1–2 lines. For the full range of export and subtitle options, the developer's page has more detail.
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