Kapwing

Ketchup is a Chrome extension that summarizes YouTube videos from the thumbnail: hover any video, click the 🍅 "Get the sauce" chip, and get a 30-second bullet summary saved to a searchable Pantry. It offers a free daily quota with optional paid plans for higher usage.

Rackast is a native Windows screen recorder that automatically zooms on clicks, smooths cursor motion, records webcam and audio, and produces local AI captions (using Whisper) with offline rendering and high-quality exports up to 4K/120fps.

TubeBuddy Assistant is an AI-powered chat and summarization tool that turns YouTube videos with captions into interactive conversations—providing instant summaries, Q&A, smart timestamps, and key takeaways via a browser extension or web interface.

NoViolation.ai is a content-scanning tool for TikTok creators that analyzes video audio and visuals to detect potential policy violations, risky wording, and unclear messaging before posting, and provides an Appeal Assistant to help contest flagged content.

Spikes Studio is an AI-powered social video studio that automatically finds standout moments in long videos, creates platform-formatted short clips, adds captions and branding, and provides scheduling and analytics for creators, teams, and enterprises.

BlipCut (Videotranslator) is an AI-powered online video translation and localization platform that translates and dubs videos into 140+ languages with features like AI voice cloning, lip-sync, subtitle generation, and batch processing.

Webcam Motion Capture is an AI-powered desktop application that uses a standard webcam (or smartphone camera) to perform high-quality hand/finger, head, facial expression, eye gaze/blink, lip sync and upper-body tracking for VTubers and motion-capture workflows. It can stream tracking data to external apps via the VMC protocol and export FBX motion files for use in CG software.

YouTube Summarizer (ys summarizer) is a free, AI-powered web tool that generates concise summaries of YouTube videos (up to 3 hours) by using available transcripts. It supports multiple languages, offers customizable summary styles, and requires no account for basic use.

Text Remover is an online AI video cleanup tool that detects and removes text, captions, subtitles, and other overlays, reconstructing the background while aiming to preserve video quality. It is designed for creators, editors, and teams preparing videos for reuse or localization.

Topaz Video is Topaz Labs’ AI-powered desktop and cloud video enhancement application for filmmakers and videographers, offering model-based upscaling, denoising, stabilization, SDR→HDR conversion and other production-grade restoration and finishing tools.

Prismiq Pulse is a post-publish video audit for YouTube that evaluates your title, thumbnail, and first 30 seconds, returns a Pulse score, timestamped friction points, and delivers 3 test-ready title variations plus 3 thumbnail concepts. Reports are ready in about five minutes and can be run by pasting any public YouTube URL.

Skipit is an AI-powered YouTube video summarizer that generates summaries and answers questions about videos up to 12 hours long. It also lets users save chats and videos.

GizAI is a multimodal AI platform that provides access to a broad lineup of chat, image, video and audio models from one account with subscription or credit-based billing, offering hundreds of models and limited free usage for many models.

Potion (Sendpotion) is an AI video personalization platform that generates hyper-realistic videos in your own face, voice, and gestures for sales, marketing, support, and education, enabling scalable personalized outreach and video content creation.

录咖（reccloud）是一款面向创作者与企业的在线AI音视频处理平台，提供语音转文字、字幕生成、文字转语音、视频翻译、视频生成、去水印、人声分离、音视频总结等一键化AI工具与开发者API。

Clippo uses AI to find highlights in livestreams and turn them into Shorts, then schedules them for automatic posting to YouTube. It runs in the cloud and can be controlled through an API by an AI agent.