Free Submagic Alternative

Why ToolDeck is a Submagic replacement worth trying

Submagic is a caption-focused cloud editor with a very polished workflow, a huge preset library and multi-language transcription — but its pricing is per-video credits and the trial watermarks exports. ToolDeck gives you the same core job — auto captions on a talking video, styled and burned in — with an on-device model, 40+ presets, safe-zone placement and free MP4 export. No upload, no watermark, no credits.

It is best for Shorts, Reels, TikToks, podcast clips and tutorials in English. It does not include Submagic’s B-roll, emoji and sound-effects libraries, and its AI captions recognise English only (other languages via SRT/VTT import). If you need a large emoji library or multi-language auto-transcription, Submagic fits better; if you want privacy, zero cost and no watermark, ToolDeck is the closer match.

How to caption a video free as a Submagic replacement, in 3 steps

1. 1

   Drop your clip on the timeline

   Vertical or landscape — the editor picks the ratio automatically when the first clip is vertical. Nothing is uploaded.

2. 2

   Generate AI captions, pick a style, fix any words

   Open the AI Captions tab and press Generate Captions. Whisper runs on your device, adds caption clips, and you choose a preset and edit each line.

3. 3

   Export MP4 with captions baked in, or export SRT/VTT

   Choose resolution up to 4K, frame rate and GPU or CPU. The captions are rendered into the MP4, and you can also download the SRT or VTT file separately.

Caption features you would pay for elsewhere

• AI auto captions on-device

  Whisper transcribes English speech into caption clips without uploading a single frame. The model downloads once and runs in your browser, so private footage never leaves your laptop. Review and fix any word before exporting.

• 40+ caption styles

  Bold, highlighted, boxed, outlined, karaoke-style word-by-word — start from a preset and tweak font, colour, outline, glow and box. Styles are applied to caption clips on the timeline, so each line can be tuned separately.

• SRT and VTT export

  Export the transcript as an SRT or VTT file for YouTube, podcast apps and archive. Import an existing SRT/VTT in any language and burn it in — English AI is not a limit if you bring a translated file.

• Silence removal, one click

  Set the noise threshold and minimum pause, and the editor finds every quiet stretch and closes the gap. Apply it to a whole track in one pass — the fastest way to cut dead air before captioning.

• Safe-zone-aware text placement

  Captions auto-place inside the safe area of Shorts, Reels and TikTok so they are not covered by UI or cropped by the platform. Move or resize any caption manually if you want a different placement.

• Any aspect ratio

  9:16, 16:9, 1:1, 4:5, 4:3, 3:4 and 21:9 with an optional blurred background. The editor picks the ratio automatically when your first clip is vertical — ideal for a single workflow that feeds Reels, Shorts and TikTok.

• MP4 export up to 4K 60fps

  WebCodecs encodes H.264 with AAC audio using your GPU when supported, else CPU. Choose resolution, frame rate and engine per export. The output is a clean MP4 with captions baked in and no watermark.

• No sign-up, no upload

  No account, no email wall, no per-minute credit meter and no watermark to buy off. Open the page, drop files, caption and export. Captions run on your device — the file never leaves it.

What creators caption with ToolDeck

• YouTube Shorts captions

  Pick 9:16, run auto captions, choose a bold preset and export. Burned-in captions survive YouTube compression and drive watch time on the feed.

• Instagram Reels captions

  Use the safe-zone caption presets so Reels UI does not cover the text. Export 1080p MP4 and upload straight from your phone.

• TikTok captions

  Choose a word-by-word highlighted style, trim to the hook and export a vertical MP4 with captions baked in — no watermark, no credits.

• Podcast clip captions

  Cut a highlight from a long episode, caption it, and export both a vertical MP4 for social and the SRT file for YouTube.

• Course and tutorial captions

  Transcribe on-device to avoid uploading course footage, fix technical terms and export 1080p with captions baked in for accessibility.

• Accessibility for social content

  Burned-in captions make Shorts, Reels and TikToks watchable with the sound off — the default view for most feeds.

What works well, and where ToolDeck stops short of Submagic

Everything runs on your computer. Cloud-only features such as a B-roll/emoji library are not included. Check this table before a big project.

ToolDeck vs Submagic, side by side

Submagic is a polished, cloud-based caption editor with per-video credits, a huge preset library and multi-language transcription. ToolDeck offers a focused free alternative: on-device English captions, 40+ presets, safe-zone placement and MP4 export up to 4K with no watermark, no credits and no upload.

General comparison. Individual products differ — check Submagic’s pricing page for current numbers.

Submagic alternative FAQ

Answers on price, watermark, credits, privacy, captions, styles, export and how ToolDeck compares to Submagic.