Generate accurate SRT subtitle files for YouTube in seconds. Boost SEO, accessibility, and viewer retention with AI. Free 5,000 credits — ถูกที่สุด!
YouTube indexes subtitle text. Accurate captions make your videos discoverable for relevant search queries.
Viewers watching with subtitles stay 12% longer on average. More watch time = better algorithm ranking.
SRT files in multiple languages let your content reach viewers worldwide without dubbing.
Upload your YouTube video or export its audio. We handle files up to 2GB.
AI generates perfectly timed subtitles. Download the SRT file in one click.
Go to YouTube Studio → Subtitles → Upload File. Your captions go live instantly.
Upload your video or audio to FastCaption to generate an SRT file. Then go to YouTube Studio → Subtitles → Add Language → Upload File → SRT. Your subtitles will appear on the video within minutes.
Yes! YouTube indexes subtitle text, making your video discoverable through search queries that match your spoken content. Adding accurate subtitles can significantly increase organic views.
FastCaption supports 15+ languages. You can transcribe your video in its original language, then create additional subtitle tracks for other languages.
Free to start with 5,000 credits (≈25 minutes). Additional credits from ฿49 — the cheapest YouTube subtitle generator available. No monthly subscription.
อัปโหลดวิดีโอหรือไฟล์เสียงใน FastCaption สร้างไฟล์ SRT แล้วนำไปอัปโหลดใน YouTube Studio → Subtitles → Upload File ซับจะแสดงบนวิดีโอทันที