OpenSubs vs ImgExtender

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 ImgExtender
Detail	OpenSubs	ImgExtender
What it does	Free AI subtitle generator that runs entirely in your browser	Expand photos without cropping or stretching
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
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: 10 credits (2 generations). Pro: $9.99/month ($119.88 yearly, 2,400 credits/year). Max: $29.99/month ($359.88 yearly, 9,600 credits/year). Each generation costs 5 credits. Free and Pro results are watermark-free for Pro and Max subscribers; free tier results are watermarked.
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	Generate new canvas space around images in square, portrait, or landscape ratios Position subject within destination frame before generation Review generated space on comparison canvas before download No prompts required Browser-based editor with no software installation Private uploads and results by default Watermark-free results on Pro and Max plans Commercial use rights on paid subscriptions Support for JPG, PNG, and WebP formats up to 10 MB Same professional image-extension model across all plans
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	No complex prompts or AI settings required—just set the frame and position the subject Designed specifically for image extension without upscaling or cropping Full control over composition and subject placement before generation One image adapted for multiple layouts and formats simultaneously Private by default with automatic deletion after 7 days
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	12 −1 (down) since last check
Trust Flow (Majestic)	10	4
Citation Flow (Majestic)	30	18
Referring domains (Majestic)	96	28

4 details filled in for both companies.

More alternatives to OpenSubs More alternatives to ImgExtender