Quack AI
Entrepreneur First '23Paris, FR · Founded 2023 · 1 known investors
Quack AI offers a VSCode extension that lets project maintainers define contribution guidelines and guides developers through the contribution flow inside their IDE, with analytics to identify and fix bottlenecks. It targets software development teams managing open-source or internal contribution workflows.
Also known as Quack · QUACK AI
Founders & leadership
Quack AI was founded in 2023 by François-Guillaume Fernandez.
Investors · 1
Company profile
researched Aug 2026Quack AI develops a VSCode extension aimed at aligning software teams around contribution guidelines. The workflow described on the company site has three stages: maintainers curate the contribution flow and expectations; developers are guided through that flow directly inside their IDE; and failure analysis surfaces bottlenecks in the contribution flow so it can be iterated on. The stated purpose is to reduce review overhead and repetitive project maintenance work by making a team's expectations explicit and machine-assisted.
A French startup directory describes Quack AI as an open-source IDE extension for onboarding developers onto a new codebase. Per that description, the product ingests a project's coding guidelines, including documentation and past bugs, so that a codebase becomes familiar to newcomers and so that contributed code is more likely to be merged quickly. The extension runs on VSCode and connects to projects hosted on GitHub. Associated technology tags include git, deep learning, machine learning, LLMs, and self-hosted/enterprise deployment.
Quack AI also publishes documentation positioned as a resource for collaborative software development, targeted both at open-source communities and larger software teams, with a quick-start intended to get a "team coding companion" running in about five minutes. Support channels listed in the documentation include a Discord server, Twitter, GitHub issues and email."]
Founding story
Available sources do not describe a founding narrative. A French startup directory lists two co-founders, François-Guillaume Fernandez and Thibaut Morla, and records Fernandez as holding a Master of Science in Economics from École Polytechnique with skills in deep learning, Python, computer vision, FastAPI and machine learning. It also lists him as co-founder of Pyronear since September 2019 and as a Founder in Residence at Entrepreneur First from September 2022 to April 2023.
Business model
B2B developer tooling: the product is distributed as a VSCode extension that connects to projects hosted on GitHub, with maintainers configuring guidelines and contributors consuming them in the IDE. The company states the IDE extension is available free of charge to open-source maintainers and OSS developers; myfrenchstartup categorizes the company as B2B and tags it with self-hosted and enterprise deployment options. No pricing or paid tiers are described in the available sources.
Not disclosed in the available sources. The IDE extension is stated to be free for open-source maintainers and developers; no paid, enterprise or subscription pricing is described, though self-hosted and enterprise are listed as product tags.
Traction
Little quantitative traction is disclosed. The French directory reports headcount of 1 and no recorded total funds raised. The company site references a Discord developer community and lists unnamed backers; the documentation site references GitHub stars and issues as engagement channels. No customer counts, revenue or usage metrics appear in the sources."]}
Latest developments
No dated developments for this company are reported in the available sources. The company website continues to present the VSCode extension and lists unnamed backers under a "Backed by" section.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
The sources provide no market share, ranking or comparative positioning data. A French startup directory places the company in the IT & web development sector and reports a sector competition score of 9 against a French average of 4.8, and a sector creation rate of 11.6% against a French average of 6.9%; these are sector-level rather than company-level indicators. Reported headcount is 1 and total funds raised are listed as not available.
The stated approach is to embed contribution guidance where developers already work — inside the IDE — rather than surfacing it at review time, and to close the loop with analytics that identify where contributors fail in the flow. The directory description emphasizes ingestion of project-specific context (documentation and past bugs) so that newcomers can produce code that matches repository conventions, and notes the extension is free for open-source maintainers and contributors.
Technology
A VSCode IDE extension, described by a French startup directory as open source, that connects to GitHub-hosted projects and ingests project coding guidelines, documentation and past bugs to contextualize contributions. Technology tags associated with the company include deep learning, machine learning, LLMs, git and dev tooling, with self-hosted and enterprise options. Public infrastructure noted in the directory includes Cloudflare DNS and hosting and Google Workspace email.
Go-to-market
Distribution is direct and self-serve through the VSCode extension, supported by a public documentation site with a five-minute quick start, a Discord community for developers, a GitHub repository and Twitter updates. The company invites teams working on the VSCode plus GitHub stack to get in touch, indicating an inbound, open-source-community-led motion.
Open-source project maintainers and their contributors, and large software teams managing contributions to shared codebases; the directory lists the model as B2B. Teams using VSCode with projects hosted on GitHub are the explicitly addressed stack.
Geography
France-based per the French startup directory listing, which classifies the company under the IT & web development sector in France. No other offices or markets are described in the sources.
History
Sources give inconsistent founding dates: myfrenchstartup lists the company creation year as 2022 and dates founder François-Guillaume Fernandez's role as Founder & CEO of Quack AI from October 2022 onward, while also noting he was a Founder in Residence at Entrepreneur First from September 2022 to April 2023. The same profile appends "(YC S23)" to his Quack AI title. The company maintains a public website, a documentation site, a Discord community and a GitHub presence.
Risks & controversies
No controversies are reported in the sources. Data risks include conflicting founding-year information (2022 in the French directory versus other records) and multiple unrelated companies operating under the "Quack AI" name — an Israeli/US customer-support AI agent company (quack.ai) acquired by Augmented Intelligence, and a blockchain governance project (quackai.ai) — which creates a high risk of record contamination. Reported headcount of 1 and no disclosed funding total suggest very early stage with limited external validation.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
▸Research sources · 8
primary sources listed
- Quack AIquackai.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Quack AI do?
- French developer-tools startup building a VSCode extension that guides contributors through a project's codebase guidelines.
- Who founded Quack AI?
- Quack AI was founded by François-Guillaume Fernandez in 2023.
- Who are Quack AI's investors?
- Quack AI's investors include Entrepreneur First.
- Where is Quack AI headquartered?
- Quack AI is headquartered in Paris, FR.