krillinai/OpenCreator is an open-source project on GitHub, mainly written in TypeScript. Formerly KrillinAI, VideoTranslation and Dubbing Tool. Open-source AI workspace for creators, powered by Codex. It currently holds 13,733 stars and 1,507 forks with 40 open issues, and was last pushed on 2026-10-19 (repository created 2024-12-17).
OpenCreator is built for individuals and teams who want to keep creative and development work running locally. Instead of reimplementing an Agent loop, it uses Codex CLI as the execution engine and adds a stable local Runtime, a visual workspace, and a Desktop host around it.
OpenCreator offers two connected ways to work:
Content workspace: use visual tools and creation templates for video translation and downloading, image and video generation, voiceovers, article and social post writing, short-video scripting, and stick figure animation.
Agent conversation: start and guide creative or development tasks in natural language, organize conversations by project, keep Runs working in the background, and manage approvals, attachments, files, Skills, MCP, schedules, notifications, memory, and diagnostics from one place.
Web is the single frontend implementation. Desktop loads the same Web build and adds only capabilities that require the operating system, such as directory selection, window lifecycle, tray behavior, and native notifications. With the same data and content viewport, both platforms share the same general UI and Runtime behavior.
Project Highlights
🤖 Codex Native: Reuse the Codex Agent loop, models, reasoning, tool calls, conversations, Skills, and MCP without maintaining a second execution engine.
🚀 Ready-to-Use Desktop App: Launch OpenCreator directly from the desktop app with Codex CLI included; the local Runtime starts on demand and prepares a default project automatically.
⚙️ Desktop Setup That Reuses Codex: On first launch, scan your local Codex configuration and offer to reuse a working ChatGPT sign-in or API key setup. A guided form is available for other model providers.
🔄 Managed Runtime Components: Inspect bundled, active, and latest yt-dlp versions, check for updates periodically, and update manually while keeping the current working version available if an update fails.
🎨 Multimodal Creation: Create and manage video, images, audio, subtitles, and documents through one connected workflow.
🧩 Creation Templates: Start creating images and videos from reusable templates without setting up prompts and settings from scratch.
🔗 Dual-Mode Workflow: Work through either the visual workspace or Agent conversation while one shared state machine keeps steps, progress, and results synchronized.
🕘 Versioning: Every revision creates a new version while preserving earlier settings and outputs for review and comparison.
🧩 Reusable Skills: Use video workflow Skills, extend the Agent with your own Skills, and manage MCP through Codex-native configuration.
🧠 Memory: Keep global, project, and thread memory with summaries and reproducible Run input snapshots.
🔐 Local Security: Keep data, attachments, and logs local by default, with approvals and redacted diagnostics.
🌐 Localized Interface: Use Web and Desktop in 43 interface languages, with automatic system-language detection, manual selection, and right-to-left layouts for Arabic, Persian, Urdu, and Hebrew.
Creator Tools
The current release includes ten creator tools. Available models and services depend on your local Codex environment and AI service settings.
Open the Dashboard to write articles, Xiaohongshu posts, or short-video scripts; create stick figure animations; translate or download videos; generate thumbnails, images, or videos; and create voiceovers with Text to Speech.
More creator tools are continuously being added.
Video Translation offers 123 source languages and 124 target options, including Pinyin output. Search by native name, English name, Chinese name, or language code. Speech recognition and dubbing coverage depend on the selected service and model; the language catalog does not mean every model supports every language.
Subtitle-only translation: Import and preview an SRT file, then translate it without a source video, dubbing, or video rendering.
Advanced subtitle editing: Open an immersive editor with a playback-linked waveform and timeline, adjust subtitle timing, split or merge cues, and find and replace text. Preview subtitle styles on the video, adjust language, dubbing, and output settings, then generate a new version while retaining earlier results.
One-step creation: Configure image generation, video generation, and Text to Speech on one page. Browse models, preview reference images, use model-specific image options, and find voices in a searchable voice library.
Multilingual output and progress: Bundled fallback fonts improve complex-script and right-to-left subtitle rendering. Follow transcription, translation, dubbing, and rendering progress with completed and total item counts where available.
Workspace
Status
Capabilities
Video Translation
✅ Available
Import local or public videos; transcribe with cloud or local Whisper services; use LLM context for subtitle segmentation, alignment, terminology, and translation; configure bilingual subtitles, dubbing or a custom voice sample, subtitle styles, landscape or portrait composition, and export SRT, audio, or video
Video Downloader
✅ Available
Analyze individual public videos from YouTube, Bilibili, X, TikTok, Instagram, Douyin, Facebook, Xiaohongshu, Pinterest, and Reddit; compare available formats and download video or audio. Some sources may require platform cookies. When platform captions are available, preview the subtitle list and download SRT; English appears first, followed by the interface language when available.
Thumbnail Generator
✅ Available
Combine a topic, video link, and optional reference image to generate and compare multiple content-thumbnail variations
Image Generation
✅ Available
Generate with GPT Image / Seedream / Kling Image / Gemini from a prompt and optional reference image, configure the aspect ratio and output count, then preview and download individual images
Article Writer
✅ Available
Turn a topic, links, videos, or source documents into editable topic options, an outline, and a complete article; add generated images and export Markdown, HTML, or PDF
Xiaohongshu Posts
✅ Available
Generate a complete Xiaohongshu post from a topic or source material, with controls for the target audience, post type, and length, then copy or download the result
Short Video Script
✅ Available
Create a shoot-ready segmented script from a topic or source material, tailored to the audience, platform, duration, and tone, then edit, copy, or download it
Stick Figure Animation
✅ Available
Turn text or YouTube content into narration, voice, consistent-character storyboard visuals, subtitles, and a downloadable stick figure animation
Auto Clips
In development
Analyze long videos, identify highlights, and turn selected moments into reusable short clips
Text to Speech
✅ Available
Turn scripts into voiceovers with selectable voices, pacing, and emotion controls
Video Generation
✅ Available
Generate videos with Seedance / Kling / Veo from prompts and reference images, then preview, regenerate, and download each version
Digital Avatar
In development
Combine scripts, voice, and avatar presentation to produce talking-head videos
Creation Templates
Start creating from a template instead of building every prompt and setting from scratch. Browse featured templates by category, including video creation and image design, to find a starting point for your idea.
The collection brings together templates created by OpenCreator and by independent creators. Third-party templates credit their creators and link to the original source on the template detail page.
Open a template to preview its example result and inspect its prompt, settings, tags, author, and original source. Select Use this template to start creating with it, then adjust the inputs for your own work.
Skills
Creator tools provide visual controls; Skills give the Agent reusable instructions and tool workflows. OpenCreator includes video-production Skills in the repository, alongside support for managing local Codex Skills.
The repository's skills/ directory contains reusable instructions for Agents operating the embedded KrillinAI CLI.
| Skill | Capabilities |
| --- | --- |
| KrillinAI CLI | Choose commands, check configuration, and interpret progress, manifests, outputs, and errors |
| Subtitle | Download platform captions or transcribe media, translate subtitles, and produce bilingual or short portrait subtitles |
| TTS | Generate target-language dubbing from subtitles and optionally produce a dubbed video |
| Landscape Render | Render landscape videos with bilingual subtitles or dubbed audio and target-language subtitles |
| Portrait Render | Compose portrait videos with titles, bilingual subtitles, or dubbing |
| Cover | Generate a cover image from a complete text prompt and save the image and final prompt |
| Pipeline Plan | Validate a multi-stage output plan in dry-run mode; execute actual work through the individual stage Skills |
Extend with Your Own Skills
OpenCreator supports local Codex Skills defined by SKILL.md, so you can add your own methods and workflows rather than relying only on fixed creator tools. Skill availability depends on the active Codex home and installed Skills; video workflow Skills require the CLI and relevant services to be configured. Inclusion in the repository does not mean every Skill is automatically installed or every external service is bundled.
Conversation and workspace, moving together
Describe tasks naturally, then step into visual tools whenever you need precise control.
Fine-grained workspace controls
Adjust subtitles, shots, audio, and generation settings precisely.
Flexible conversational edits
Tell the Agent what to change and refine the result in natural language.
Synchronized state
Conversation and workspace share the current task state, so nothing needs repeating.
Independent versions
Each revision creates a separate version without overwriting earlier results or settings.
Models Supported
Language model availability follows the Codex model catalog or your OpenAI-compatible provider. Image, video, voice, and transcription models use the services configured in Settings → AI Services.
The providers and models shown are examples; actual availability depends on your credentials, provider account access, and platform.
Language models
GPT
DeepSeek
Qwen
Kimi
GLM
Grok
Doubao
ERNIE
Hunyuan
MiniMax
Image
GPT Image
Seedream 4.0 Jimeng
Kling v2.1 Kling Image
Nano Banana Gemini 2.5 Flash Image
Video
Seedance 2.5
Kling v2.1 Master
Veo 3.1
Voice and transcription
Whisper
OpenAI TTS
MiniMax
Edge TTS
Aliyun Speech
Volcengine Speech
Local transcription also supports faster-whisper, WhisperKit, and whisper.cpp where available.
Examples
Video Translation
The public examples below were produced when OpenCreator was still named KrillinAI. They demonstrate the established subtitle alignment, translation, dubbing, and portrait-video workflow that OpenCreator's Video Translation workspace brings into a wider Agent workflow.
The project generated the subtitle file below from a 46-minute local video in one run, without manual subtitle adjustments. The published result shows complete coverage, no overlapping lines, natural segmentation, and high-quality translation.
These video examples and the subtitle alignment image were produced while OpenCreator still used the KrillinAI name.
Video Downloader
Analyze public video links from 10 supported platforms, compare available formats, and download video or audio directly to your project.
Supported video sources:
YouTube
Bilibili
X
TikTok
Instagram
Douyin
Facebook
Xiaohongshu
Pinterest
Reddit
Availability varies by video and region; some sources may require platform cookies.
Video Generation
Generate an AI video from a text prompt or reference image with Seedance. Configure the model, aspect ratio, resolution, and duration, then preview, regenerate, or download each version from the project workspace.
Stick Figure Animation
OpenCreator developed this original character collection in collaboration with artist Harbor Hsia, creator of Stickman on Behance. The built-in cast keeps character identities consistent throughout the animation workflow.
Turn text or YouTube content into a complete animation through a guided workflow for script review, narration, timing, storyboard visuals, subtitles, rendering, and downloadable video output.
Quick Start
Install the Desktop App
Download the installer for your platform from the latest OpenCreator release (macOS Apple Silicon, macOS Intel, or Windows x64). Install and open the app; you do not need Node.js or pnpm to use the Desktop app. The Desktop package includes Codex CLI; real model tasks require a usable ChatGPT sign-in or API key setup.
On first launch, Desktop starts the local Runtime, prepares a default project, and checks your local Codex configuration. If it finds a usable sign-in or API key and model settings, confirm Use local Codex and continue to reuse them. You can also configure another provider in the same startup flow:
After setup, enter your request in the composer to start a task. If you run into trouble, see the user guide and troubleshooting.
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