Alternatives
Products that do what Lorem.video – placeholder videos generated from URLs does
At work I have to deal with videos in different resolutions. We're also switching from H.264 to AV1, so I needed a quick way to test our video pipeline with different formats and sizes. I created lorem.video - a service that generates placeholder videos directly from the URL. For example: https://lorem.video/1280x720_h264_20s_30fps You control everything via the URL path: resolution, duration, codec (h264/h265/av1/vp9), bitrate, and fps. Videos are cached after first generation, so subsequent requests are instant. Built it in Go using FFmpeg for encoding.…
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2021 · vidds.co
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2020 · modfy.video
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Convert .webm files to .mp4 files without uploading them
2021
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Hey HN! I built Topic2Manim to automate the creation of educational videos like those from 3Blue1Brown. The workflow is simple: 1. Give it any topic (e.g., "how ChatGPT works") 2. An LLM generates an educational script divided into scenes 3. LLM generates Manim code for each scene 4. FFmpeg concatenates everything into a final video Currently working on TTS integration for narration! Would love feedback on the approach and ideas for the TTS integration
Jan 2026 · github.com
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Hey HN! This is Mayank from Outscal with a new update. Our website is now live. Quick context: we built a tool that generates animated videos from text scripts. The twist: instead of rendering pixels, it outputs React/TSX components that render as the video. Try it: https://ai.outscal.com/ Sample video: https://outscal.com/v2/video/ai-constraints-m7p3_v1/12-01-26... You pick a style (pencil sketch or neon), enter a script (up to 2000 chars), and it runs: scene direction → ElevenLabs audio → SVG assets → Scene Design → React components →…
Jan 2026 · ai.outscal.com
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As I worked on my personal projects, I kept running into the same problem: There wasn’t a simple, local way to convert screen recordings into GIFs that look clean in a README.md. Recordings don’t render inline on GitHub READMEs, and I didn’t want to rely on bulky video editors or upload my files to some sketchy ad-filled site. So, I wrote a small script. I found myself using it so often that I turned it into a proper tool: minimal, local, and built for developers who care about good documentation. I’m not some elite hacker — just a dev who wanted a better way to share demos. Thought others…
2025 · github.com
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The one-liner: You give it a script, it generates a portrait video in 10 minutes. No stock footage, no templates—it writes code that renders as video. ## Why I built this We were building game dev courses at Outscal and needed to produce a lot of video content fast. Traditional video production was slow. AI video generators looked weird. So we tried a different approach: what if video was just code? Turns out it works. We can replicate specific art styles, and the output is consistent and editable. ## What it can do - Generate 30-60 second shorts from a script - Match specific visual styles…
Dec 2025 · github.com
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Hello HN! I’m a bachelors student pursuing Artificial Intelligence, Robotics and Signal processing and during the year I had the goal to build my first AI Tool and launch it. I got inspired by how capable Whisper is, and combined the Whisper CPP Bindings along with FFMPEG.Wasm to create a tool that is capable of transcribing and captioning video files that contain one or more video tracks. Along with that, I’ve also added the support for transcribing audio files with the option to export those outputs as .SRT, .WebVTT or simply a text file. All done privately on a user’s web browser with…
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Nov 2025 · ethan.dev
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GitHub: https://github.com/Sportinger/MasterSelects I built this Browser-based video compositor with a GPU-first architecture. No Canvas 2D in the rendering path — video textures go in as texture_external (zero-copy), compositing runs through a ping-pong WGSL shader pipeline, and export captures frames directly from the GPU canvas via WebCodecs. 39 GPU effects, 37 blend modes, nested compositions, keyframe animation with bezier curves, vector masks, 10-band live EQ, video scopes, and AI-driven editing via GPT function calling. 13 production dependencies. The compositor,…
Feb 2026 · masterselects.com
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Hello HN, I’ve been experimenting with the recent Remotion + Claude Code workflow. While generating video code with LLMs is impressive, the feedback loop felt broken to me. You have to prompt, copy code, set up a local Node environment, install dependencies, and run ffmpeg just to see a 5-second preview. I built FreeMotion (https://freemotion.dev) to move this entire workflow into the browser. It is a free, online editor specifically designed to close the loop between "Prompting" and "Rendering". The core problems I tried to solve: Environment Friction: Running Remotion locally…
Jan 2026 · freemotion.dev
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