The dev marketer’s
toolbox.
Tools we use ourselves on client projects, open to everyone. No usage limit, no email to hand over, no « freemium » that cuts you off at the critical moment.
The flagship tool
Free SEO & performance audit
Enter a URL, receive in 30 seconds a complete report: on-page SEO, Core Web Vitals, mobile, security, content, meta-data. 6 criteria analysed, no paid API, no sign-up.
Upcoming tools
Currently being built. Subscribe to be notified of each release, or suggest the tool you’re missing.
Meta-tags generator
Title, description, OG, Twitter cards, JSON-LD. Input a URL, output the <head> block ready to paste.
coming soonCore Web Vitals monitor
LCP, INP, CLS, TTFB on desktop + mobile, 30-day history, email alert on degradation.
coming soonschema.org builder
Generate Google-validated JSON-LD: Article, Product, LocalBusiness, FAQ, HowTo. Form interface, ready output.
plannedrobots.txt generator
Checklist by CMS (WP, Shopify, Next), AI-bot rules (GPTBot, ClaudeBot, etc.), syntax validation.
plannedSEO ROI calculator
Target traffic × conversion rate × average cart. Outputs the SEO budget to allocate and the break-even.
plannedSuggest a tool
You need a dev or marketing utility? Suggest it — if it’s useful we’ll build it.
suggest →Notified at every release
One email when a new tool drops. Nothing else. No marketing, no follow-up, unsubscribe in 1 click.
~1 email per quarter · zero spam
Frequently asked questions about our tools
Why make your web development tools public?
By transparency. Publishing our tools allows the client to understand exactly what is used on their project: frameworks, CMS, third-party services, plugins. Each web development tool listed is justified by a concrete use case. No black box: if a tool is no longer maintained or changes its business model, you’ll know before we do.
Are your web development tools suited to all projects?
No, and that’s precisely the point. Each project receives the web development tools stack best suited to its needs: a simple blog doesn’t need Next.js, a B2B SaaS can’t turn on WooCommerce. We select tools for their performance, maturity, and longevity — not to follow a trend.
Do you accept working with the client’s existing tools?
Yes, absolutely. If you already have web development tools in place (legacy WordPress, custom CRM, e-commerce platform), we integrate them rather than rebuild everything. Our expertise across popular tools (WordPress, WooCommerce, Shopify, Symfony, Laravel, React) lets us build on what exists rather than impose a costly rewrite.
What monitoring and analytics tools do you use?
Our tools on the observability side are pragmatic: Plausible or Matomo for analytics (GDPR-friendly, not Google Analytics unless requested), Sentry for error tracking, Google Search Console and Rank Math for SEO, PageSpeed Insights and web.dev for Core Web Vitals. All these tools are installed from the first day in production — no hidden recurring costs.
Do you offer training on these tools?
Yes. Every delivered project includes a handover training session on the web development tools used (WordPress back-office, Shopify dashboard, Sentry panel, etc.). A versioned documentation accompanies critical tools. Additional sessions are available as an option if your team wants to reach full autonomy.