About This Site
A free local-first workspace for code, notes, API requests, and developer tools. massCode is a free, open-source, cross-platform developer workspace for organizing code snippets, Markdown notes, HTTP requests, calculations, drawings, and developer tools. It stores workspace content locally as plain files, giving users control over their data and allowing them to open files outside the app or sync the workspace folder with services such as iCloud, Dropbox, Syncthing, or Git. It also includes an AI assistant that can connect to supported cloud models using a user-provided API key, or to models running through Ollama or LM Studio.
Alternatives
Skillry
Skillry is a growing library of Agent Skills for AI coding agents. Every Skill carries a specific visual point of view, and you can see exactly what it makes before you install it — so what your agent ships is something you'd actually show. Web pages, slide decks, images and video. Install from the web or your CLI and use it inside Claude Code, Codex, Cursor and more. The taste is ours. The work is your agent's.
Your agent can build a site, a deck, a video, an image. It just has no taste.
Skillry is a growing library of Agent Skills that do. Each Skill carries a specific visual point of view, and you can see exactly what it makes before you install it — you are not buying a description.
Install from the web, or authorize your browser once and run a single command in your CLI. Then invoke a Skill by name inside your agent and get a finished piece of work: a landing page that looks art-directed, a deck you would actually present, an image that stops the scroll, a short film that moves.
Four kinds of work today — web pages, slide decks, images and video — with new Skills added every week. No API key required.
It is not a marketplace. There is no community upload and no race to ten thousand listings. The library is deliberately small and grows one Skill at a time, which is the whole point: everything in it has a look worth keeping.
Works with Claude Code, Codex, Cursor and more.
The taste is ours. The work is your agent's.
AIGoCode - 1
An AI development workspace for coding, usage management, and team collaboration.
AIGoCode is an AI productivity platform for developers that brings AI coding assistance, intelligent Q&A, usage and quota management, team collaboration, and subscription services together in one workspace. It supports multiple agents and models, with shared quotas and API key access, usage tracking, and options for pay-as-you-go, subscriptions, or customized enterprise plans.
cto.new
Free AI code agent using frontier models from Anthropic, OpenAI.
cto.new is a completely free AI code agent that enables users to code with the latest frontier models from leading providers like Anthropic and OpenAI. It offers instant access for Product Hunt users and explicitly states that no credit card or API keys are required to use its services.
EverSQL
AI-powered SQL optimizer for PostgreSQL & MySQL databases.
EverSQL is an AI-powered PostgreSQL & MySQL database and SQL optimizer. It helps engineers monitor and optimize SQL queries online, providing ongoing database performance insights quickly and easily. EverSQL offers tools for SQL query optimization, syntax checking, formatting, and more. It aims to improve database performance, reduce costs, and save time for database administrators and developers.
Key Features AI
Core Features
Organize code snippets in folders and with tags
Create and connect Markdown notes, including task notes
Save HTTP requests and run multi-step workflows with checks
Use an AI assistant with supported cloud providers or local models
Store workspace content locally in portable, open formats
Compare JSON, use developer utilities, and perform calculations
Navigate and search using a keyboard-driven command palette
Run on macOS, Windows, and Linux
Advantages
Free and open source under the AGPL v3 license
Local-first storage keeps workspace files on the user's machine
Plain Markdown and other open formats are portable and Git-friendly
Works offline and does not require a cloud-based workspace
Supports macOS, Windows, and Linux
Offers code, notes, HTTP workflows, drawings, calculations, and utilities in one app
Can connect to several cloud AI providers or local models
缺点：Cloud AI usage requires a user-supplied API key and is billed by the provider
缺点：The provided content does not specify paid sponsorship or subscription packages
缺点：Syncing across devices depends on a separately chosen storage or sync tool
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