Creative media generation and editing
Video subtitle generation and translation
Tools that transcribe, edit, translate, sync, and burn in subtitles for videos, plus browser overlays that translate on-screen or streaming subtitles for creators and language learners.
Built for: Video creators and language learners
Projects since May 04
104
Different builders
97
Last 4 weeks vs 8 before
-19%
AI is the core
52%
Projects per week
Mostly web app (38%), browser extension (34%), desktop app (19%) · from r/SideProject, r/chrome_extensions, r/vibecoding, r/SaaS
Latest
- Automatically translates all of a user's media assets in one click, and can generate new ones.“Would you use automate translation of all of your assets?”
- Captions Generator — Transcribes video or audio into captions, lets users edit and translate them, and exports styled video or SRT, VTT, and TXT subtitle files in the browser.“I built a caption editor with bilingual subtitles, free SRT export, and video rendering in your browser”
- Adds subtitles to videos on Japanese websites.“I made subtitles for Japanese websites”
- FlashTranslate — Translates YouTube subtitles, full web pages, and selected text in the browser using the user's own AI provider API key.“I wanted one BYOK AI translator for YouTube and the web, so I built FlashTranslate”
- Transcribes video content into text without inventing details that were not in the video.“My launching my chrome extension: reddit sub dead?”
- Saves words clicked in anime subtitles along with the scene they appeared in, so the user can review the scene later.“Built a Japanese-learning tool for anime watchers as a side project. Now I'm wondering how you'd even get someone to use a thing like this.”
- SubKu — Extracts burned-in subtitles from video frames using OCR and exports them as editable text and .srt files, all within the browser.“I built a tool to extract hardcoded subtitles from videos, running entirely in the browser”
- Subtrims — Converts spoken English audio into short 2-5 word captions and exports them as SRT or TXT files.“I built a free subtitle tool for short-form video editors”
- CueCaps — Automatically transcribes video audio and syncs styled captions to the spoken words, with options to export burned-in MP4, transparent MOV or WebM, or SRT files.“Free automatic caption editor for shorts, tiktoks and whatnot :)”
- Sablate — Transcribes video locally with Whisper and exports subtitles as files or burns them into the video.“Sablate: the subtitle app I built because caption tools wanted my footage on their servers”
- Generates word-level timed captions for video, focused on Hindi and Gujarati and mixed-language speech.“Built a captioning tool because "multilingual support" from big apps is basically fake”
- Lagom Lens — Shows translations of subtitle words when the user hovers over them in videos.“Hover over subtitle to translate”
- KoeDash — Shows real-time subtitles with sentence breakdowns and dictionary cards for Korean, Japanese, and Simplified Chinese video on any browser site.“Real-time subtitles Chrome extension 'KoeDash' Showcase”
- Shows live AI-translated captions of a church service on attendees' phones via a QR code, with no app download.“A Real-Time Translation for Churches — Looking for Feedback”
- Trippi — Shows translated live subtitles for the audio of a browser tab during video calls.“I tried five meeting-translation extensions and could not turn a single one on without setup. Here is what each of them asks for first.”
- SUBTL — Generates word-timed captions for videos in English, Hindi, Tamil and other Indian languages and their mixed-script variants, with editable styles and export.“SUBTL - an iPhone app that captions English, Hinglish, Tanglish plus 22 other language's videos properly. Five days on the App Store, here is what happened”
- AI Subtitle Studio — Downloads YouTube video transcripts and exports them as plain text, SRT, or VTT, and can generate transcripts locally with Whisper.“I added a free YouTube transcript tool to my paid app”
- Free Subtitle Generator — Generates editable subtitles from video in the browser and exports them as SRT, VTT, or burned-in video.“I built a free subtitle generator that runs entirely in your browser, no upload, no account”
- CueKeeper — Converts existing SRT or WebVTT subtitle files into timestamped Markdown or plain text, with an optional dialogue-only copy and a JSON quality report.“I built a local SRT/VTT-to-text tool; is crypto checkout the wrong part?”
- SoftSub — Finds, syncs and translates subtitles for HTML5 videos in the browser, correcting timing by listening to the audio.“I made a Chrome extension that fixes out-of-sync subtitles by listening to the video, and refuses to guess when it isn't sure”
Most discussed
- AutoVidify — Generates subtitles for videos by transcribing speech, cleaning up and translating the text with an LLM, separating vocals, and rendering the subtitles onto video.“I spent 9 months building a full AI SaaS, got zero users, and open-sourced it. What would you have done in my place?”
- Subtitle downloader extension — Downloads subtitles for videos in the browser, with premium paywalled tiers via Stripe.“[Milestone/Journey] Crossed €1,000 in 2 months with my Chrome extensions. My "Multi-App" strategy & an idea for the community.”
- WinLens — Translates the text on the whole Windows screen in place, over any app or image.“I built an open-source 'Google Lens' for Windows, WinLens. It translates your entire screen in-place”
- Auto CG — Generates editable subtitles for short-form videos using AI transcription and exports them burned into the video.“I built an AI caption generator that makes subtitles in ~3 seconds and doesn’t hit you with a paywall every 5 seconds 😭 so should i make it a website?”
- Transcribes video content into text without inventing details that were not in the video.“My launching my chrome extension: reddit sub dead?”
- Translates selected text, address bar input, chat messages, documents and YouTube subtitles inside the browser, with voice-over and translation style options.“I have 72 users, but no one is using the product”
- SubKu — Extracts burned-in subtitles from video frames using OCR and exports them as editable text and .srt files, all within the browser.“I built a tool to extract hardcoded subtitles from videos, running entirely in the browser”
- tscaps — Transcribes a video with Whisper and lets the user style captions with CSS, then exports the video with burned-in subtitles.“My "just add subtitles" side quest turned into an entire video editor for captions”
- WhisperSubTranslate — Generates translated subtitle files from a video's audio locally using whisper.cpp and a chosen translation engine.“I built a free, open source desktop app that turns any video into translated subtitles — no upload, no account, no API key needed”
- vaani — Translates and re-speaks a video in other languages using a clone of the original speaker's voice while keeping background music.“I got tired of dubbed videos sounding like robots reading hostage notes, so I built an AI dubbing tool that clones the creator's actual voice.”