OpenSubs vs ImgUpscaler

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenSubs compared with ImgUpscaler
Detail	OpenSubs	ImgUpscaler
What it does	Free AI subtitle generator that runs entirely in your browser	AI image upscaler for enlarging photos and artwork online
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	HK
Pricing model	Not given	Freemium
Pricing	Free: transcription, translation on-device, all 12 subtitle styles, word-by-word highlighting, trimming, burning into video, and all export formats. Credits: $5 for 1,000 credits for cloud translation (approximately 1 credit per 30 subtitle lines).	Free: 50 credits per month. Premium: $9.90/month with 500 credits per month. Business: $19.90/month with unlimited credits. All plans allow commercial use. Paid plans include batch processing of up to 8 images and 4K enhancement.
Key features	Speech recognition in the browser using Whisper Translation to 20 languages including Chinese, Japanese, Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Polish, Dutch and Ukrainia Burn subtitles into MP4 without watermark Export to SRT, VTT, ASS and TXT formats Live subtitles over video playing in browser tabs via extension Support for multiple video formats including MP4, MOV, WebM and MKV No server processing—all work runs locally on user's machine	Batch processing of up to 8 images on paid plans Comparison slider to preview results before downloading Support for JPG, PNG, WebP, and AVIF formats 4K enhancement on paid plans Automatic deletion of images within 24 hours Commercial use allowed on all plans Edit capability before downloading results No ads on paid plans Works with photos, artwork, and scanned pictures
What makes it different	100% browser-based with no uploads—the video never leaves your machine Completely open source under AGPL-3.0-or-later so you can verify the code Free forever for transcription, styling and burning—pay only for optional cloud translation No watermark, no file-size limit, no queue, and no account needed to try	AI generates realistic detail rather than just stretching pixels Batch processing saves time for users with multiple images Works for both personal and commercial projects
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	34 −1 (down) since last check	58 no change since last check
Trust Flow (Majestic)	10	13
Citation Flow (Majestic)	30	37
Referring domains (Majestic)	96	1443

4 details filled in for both companies.

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