Subvideo.ai

Free plan Web

What Subvideo.ai is

Subvideo.ai is a web tool for adding subtitles and voiceovers to media. It supports caption styling, speaker identification, subtitle exports in other formats, and captions burned into video. Guest mode costs nothing and permits one upload per day with temporary editor access. A Free account costs nothing, billed monthly, and allows three uploads per day. It includes subtitle exports in SRT, ASS, VTT, SBV, and TXT formats, as well as voiceover for media projects. The Ultimate plan costs $9.99 a month. It has no fixed daily upload count, subject to Fair Use, and includes multiple-file uploads from the dashboard, priority processing and support, and burn-in without the free watermark. Subvideo.ai runs on the web, making it an option for people who want to work with media and captions in a browser. The free account has a higher daily upload limit than Guest mode and includes the specified subtitle export formats.

Who it suits

Subvideo.ai suits people creating subtitles or voiceovers for media in a browser. Guest mode offers a limited way to upload, while a free account adds more daily uploads and listed export formats.

What it does well

Supports caption styling and speaker identification.
Free account allows three uploads per day.
Free subtitle exports include SRT, ASS, VTT, SBV, and TXT.
Ultimate includes burn-in without the free watermark.

What to know first

Guest mode allows one upload per day.
Guest mode provides temporary editor access.
Ultimate’s upload allowance is subject to Fair Use.

Limits

Guest mode allows one upload per day. The free account allows three uploads per day; Ultimate has no fixed daily upload count but is subject to Fair Use. File-size, document, and technical processing limits apply to every plan.

Plans

Plan	Billed and limits	Price
Guest mode	1 upload per day · Temporary editor access	Free
Free account	$0/month · 3 uploads per day · Subtitle editing and downloads remain free	Free
Guest	1 upload per day · Browser-session access to guest project	Free
Ultimate (30 days)	USD 15 for 30 days of Ultimate access · No automatic renewal · Ultimate access for 30 days	$15, paid once
Ultimate	USD 9.99 per month · Monthly subscription with automatic renewal · No fixed daily upload count, subject to Fair Use · Technical file, document and processing limits apply	$9.99 a month

As subvideo.ai lists them, read 19 Sept 2026. The maker's own page has the final word.

Getting started

Open Subvideo.ai in a web browser.
Start in Guest mode for one upload per day, or create a free account for three daily uploads.
Upload a supported audio or video file.
Edit subtitle text, timing, and styling in the subtitle studio.
Choose a voice and language for voiceover, if needed.
Choose a subtitle export or render video with burned-in captions; burn-in requires a video file in a media project.

Verdict

Subvideo.ai offers subtitle and voiceover tools with guest, free-account, and paid options. Ultimate adds multiple-file uploads, priority processing and support, and watermark-free burn-in for $9.99 a month.

Questions

What does Subvideo.ai cost?

Guest mode and a free account cost nothing. Ultimate costs $9.99 a month, and a 30-day Ultimate option costs 15.00 USD once with no automatic renewal.

What is included in the free account?

It allows three uploads per day, free subtitle exports in SRT, ASS, VTT, SBV, and TXT, and voiceover for media projects.

Which platforms does Subvideo.ai run on?

It runs on the web and is used in a browser.

Which file formats can I upload?

The FAQ lists MP3, M4A, WAV, OGG, OPUS, MP4, MOV, MKV, AVI, WEBM, and other common formats.

Can Subvideo.ai burn captions into a video?

Yes. Burn-in requires a suitable media project containing a video file; a subtitle document alone is not enough.

How are translations processed?

Local models are used where available. Otherwise, subtitle text may be processed through the Google Translate API.

Facts from Subvideo.ai's own pages

Burn-in captions: Yes · subvideo.ai, 19 Sept 2026
Burn-in requirement: Burn-in requires a suitable media project containing a video file; a subtitle document alone is not enough. · subvideo.ai, 8 Oct 2026
Caption styling: Yes · subvideo.ai, 19 Sept 2026
Data retention: Guest files are deleted 48 hours after processing; free-plan video files are deleted after 30 days, while Ultimate video files are not automatically deleted after 30 days and are subject to Fair Use. · subvideo.ai, 8 Oct 2026
Free plan: Yes · subvideo.ai, 19 Sept 2026
Integrations and workflow: The site presents its subtitle workflow for YouTube, TikTok, Netflix, Premiere Pro, Final Cut Pro, and DaVinci Resolve. · subvideo.ai, 8 Oct 2026
Intended users: The site describes workflows for short-form creators, podcasters and YouTubers, agencies and freelancers, educators, and businesses. · subvideo.ai, 8 Oct 2026
Security and hosting: The site says it is hosted in the EU, is GDPR-compliant, and uses 256-bit encryption for secure uploads. · subvideo.ai, 8 Oct 2026
Speaker identification: Yes · subvideo.ai, 19 Sept 2026
Paid from: 9.99 · subvideo.ai, 19 Sept 2026
Subtitle editing: The subtitle studio includes a timeline for visually editing, styling, and syncing subtitles with audio. · subvideo.ai, 8 Oct 2026
Subtitle export: other formats · subvideo.ai, 19 Sept 2026
Subtitle formats: Free subtitle downloads include SRT, ASS, VTT, SBV, and TXT. · subvideo.ai, 8 Oct 2026
Support: The FAQ directs users to the help center or contact page and says the team will get back to them as soon as possible. · subvideo.ai, 8 Oct 2026
Supported uploads: The FAQ lists MP3, M4A, WAV, OGG, OPUS, MP4, MOV, MKV, AVI, WEBM, and other common formats. · subvideo.ai, 8 Oct 2026
Technical limits: File-size, document, and technical processing limits apply to every plan. · subvideo.ai, 8 Oct 2026
Translation processing: For subtitle translations, local models are used where available; otherwise subtitle text may be processed through the Google Translate API. · subvideo.ai, 8 Oct 2026
Voiceover: The voiceover workflow lets users select a voice and language, adjust speed and pitch, and export an audio track or rendered video. · subvideo.ai, 8 Oct 2026
What it does: Subvideo.ai creates subtitles from audio or video, lets users edit text and timing in a browser, translate subtitles, and export subtitle files or video with burned-in subtitles. · subvideo.ai, 8 Oct 2026