Private by default
Upscale, convert, and clip locally on your Windows machine. Your videos do not need to leave your desktop.
Free local AI video tools for Windows
Upscale. Subtitle. Translate.
Enhance videos and generate subtitles locally on your Windows PC. Translate subtitles into many languages with online AI when you sign in, subject to account usage limits.
Upscale your video
Readyyour-video.mp4
Preview upscale74%
Generate subtitles
Local AIyour-video.mp4
Spoken language
your-video.en.srt Sidecar subtitle file
Upscale, subtitle, translate, convert, and clip
Five video tools.
One Windows app.
Upscale, generate subtitles, convert, and clip on your PC. Use online AI to translate subtitle text into another language while preserving timestamps and cue numbers.
Convert your video
Readytravel-footage.mp4
camera-roll.mov
Local conversion queueReady
Clip your video
Readycamera-roll.mov
Clip range00:12:08 → 00:27:41 · 15:33
Start clipping
Generate subtitles
Local AIinterview.mp4
00:00:04Welcome to Yellow Ruby.
00:00:08Everything runs locally on Windows.
Translate subtitles into many languages with AI
Online AIReach more viewers with subtitle translation in English, Turkish, German, Spanish, French, and many more languages.
Example language pairEnglish → Turkish
00:00:04EnglishWelcome to Yellow Ruby.
00:00:04TurkishYellow Ruby’ye hoş geldiniz.
interview.tr.srt Translated subtitle file
Internet required. Subtitle text is sent to the online translation service. Account usage limits apply.
Supported AI models and tools
More detail.
More control.
A focused desktop tool for enhancing footage, generating and translating subtitles, changing formats, and keeping only the moments you need.
Scale your way
Choose x2, x3, or x4 output to fit the result you need, with the matching model scale.
GPU acceleration
DirectML and Vulkan paths help your hardware do the heavy lifting.
Keep the whole video
Upscale your frames and reassemble the result while preserving the original video’s audio track.
New AI video models
Choose RealESR-AnimeVideo v3 at x2, x3, or x4 for animated footage, or use RealBasicVSR x4 and BasicVSR++ x4 for real footage.
Generate subtitles with Local Whisper
Select the spoken language and click once to create a source-language SRT sidecar file locally. Nothing runs automatically in the background.
AI subtitle translation
Translate SRT subtitles into many languages with online AI. Keep the original file, timestamps, and cue numbers. Sign-in and account usage limits apply.
Totally free local conversion
Convert your videos locally at no extra cost, with output formats including MP4, MOV, MKV, AVI, WMV, and WebM.
Stack multiple videos
Queue multiple videos for upscaling, conversion, or clipping and let Yellow Ruby work through each batch in sequence.
Precise local clipping
Preview a video, set its start and end points, choose the output format, and export only the section you need.
Frequently asked questions
Local video tools.
Online AI translation.
Straightforward answers about local processing, subtitle generation, online AI translation, and Windows compatibility.
Is Yellow Ruby free?
Yes. Yellow Ruby is free to download and use for local AI video upscaling, video conversion, and video clipping.
Does it upload videos?
Video upscaling, conversion, clipping, and transcription run locally. Optional online AI translation sends subtitle text and language settings to the translation service, not your video files.
Which AI models are supported?
Yellow Ruby supports Real-ESRGAN, RealESR-AnimeVideo v3, RealBasicVSR, and BasicVSR++ models for different types of footage.
Can Yellow Ruby generate subtitles?
Yes. Select a video and its spoken language, then use Local Whisper to create a source-language sidecar SRT file. Speech processing stays on your Windows PC.
Can I translate subtitles with AI?
Yes. Choose an SRT file and its source and target languages in the desktop app. Translation requires internet access and sign-in, and sends subtitle text and language settings through our translation service to OpenAI. Usage is limited per account; check remaining calls in the app. Premium does not provide unlimited translation.
Does it work on Windows?
Yes. Yellow Ruby is built for Windows desktop computers and can use DirectML or Vulkan acceleration when available.
Can I clip a video without upscaling it?
Yes. Preview the video, choose its start and end points, then export the selected range as MP4, MOV, MKV, AVI, WMV, or WebM without running an AI upscale.
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Free local AI video tools for Windows
Download Yellow Ruby
for Windows.
Upscale, generate subtitles with Local Whisper, convert, and clip locally. Sign in to translate subtitles with online AI, subject to account usage limits.