PromptDC alternatives: 3 free & open-source picks
Curated, verified, and actually free. No trials, no crippled tiers. Star counts and last-activity dates checked by hand, not scraped and forgotten.
Una barra lateral del navegador que lee la página, reescribe la selección y guarda acciones personalizadas; tu modelo local se encarga del procesamiento.
licenseMIT
runson your machine
installInstall the extension from the Chrome, Edge or Firefox add-on store
enginesOllama, Chrome AI (Gemini Nano) and OpenAI-compatible local endpoints such as LM Studio or llamafile
dataChats, settings and other extension data are stored in the browser's local storage; only the optional share feature contacts the project's server
the catch vs PromptDCIt can rewrite selections and use page context, but it has no PromptDC-specific pipeline for turning vague coding requests into structured implementation-ready prompts.
setupThe extension installs cleanly, but it still needs a running local model endpoint and browser-to-localhost connectivity
facts verified 2026-08-14
Selecciona texto en cualquier lugar, presiona una tecla rápida y corrige, reescribe, resume u obedece una instrucción personalizada sin abrir otra pestaña.
licenseGPL-3.0
runson your machine
installUse the portable Windows ZIP or macOS DMG; Linux currently runs from source
enginesGemini, native Ollama and any OpenAI-compatible cloud or local endpoint on Windows/Linux; the macOS port also supports OpenAI, Anthropic, Mistral, OpenRouter, Gemini, MLX and Ollama
dataAPI keys and configuration stay on the device; the app does not retain writing or logs, and selected text goes only to the chosen cloud provider unless a local model is used
the catch vs PromptDCIt can obey a custom prompt from selected text, but it lacks PromptDC's purpose-built coding-request expansion and browser-focused presentation.
setupYou must supply an API key or install a local model; macOS needs Accessibility permissions, while Linux installation and Wayland support remain rough
facts verified 2026-08-14
Comandos de texto seleccionado a nivel del sistema, expertos reutilizables, un bloc de notas y contexto de documentos; trae tu modelo y olvídate de la suscripción.
licenseAGPL-3.0
runson your machine
installDownload a desktop binary from GitHub Releases; macOS also supports `brew install --cask witsy`
enginesOpenAI, Anthropic, Gemini, xAI, Meta, Ollama, LM Studio, Mistral, DeepSeek, OpenRouter, Groq, Cerebras, Azure and OpenAI-compatible endpoints, plus optional image, video, speech, search and MCP providers
dataConversation history, experts, settings and document repositories live in the local application profile; local files are indexed locally, while prompts and retrieved context sent to a cloud model leave the machine
the catch vs PromptDCCustom experts can imitate the behavior, but the coding-prompt structure and one-click website workflow must be designed and maintained by the user.
setupIt is BYOK unless you install Ollama and a local model; system-wide commands also need OS accessibility permissions
facts verified 2026-08-14
last updated 2026-08-14 · no votes, no pay-to-list · just what's real
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| Page Assist | MIT | one-click install | android, browser-extension | 8,100 | 2026-08 |
| Writing Tools | GPL-3.0 | one-click install | macos, windows | 2,400 | 2026-05 |
| Witsy | AGPL-3.0 | one-click install | macos, windows, linux | 2,000 | 2026-04 |
People pay for confidence that rewriting works across the sites and editors they use every day, plus maintained profiles, a polished interface, account features, and fixes when web apps change. A personal BYOK clone covers the basic loop well, but keeping rich editors reliable is continuing product work. If none of that applies to you, any pick above saves $108 a year.
Is there a free alternative to PromptDC?
Yes: Page Assist, Writing Tools, Witsy. Every tool on this page is either open source or genuinely free to use long-term: no trials, no crippled tiers.
Should I just build my own PromptDC?
Our verdict is SÍ. A useful personal version is highly one-shot-able: an MV3 content script can capture selected text, send it to an LLM with one of two system prompts, then replace a normal editable field or copy the result. The commercial product earns its keep through Writing profiles (grammar fix, email, social post, shorten, tone), a Coding mode that auto-detects which AI tool you are prompting and tailors the rewrite, polished interaction design, and defensive handling of complex editors where naive DOM replacement can fail or corrupt text. If you'd rather build, the exact one-shot prompt is free at puedovibecodearlo.app/promptdc.
