Developer Tools vs Spline

devtools.tr is a free toolbox of 173 web and developer tools for webmasters, developers and system administrators. Every check runs live against real servers: DNS lookup, SSL/TLS and security headers, website analyzer with PDF reports, SEO and Core Web Vitals, TTFB, CDN and compression tests, IP geolocation, WHOIS, ASN and blacklist checks. Developer utilities include a JSON formatter and validator, regex tester, Base64, UUID, SQL/HTML/CSS/JS formatters and minifiers. Results come as clear reports with scores and ready-to-paste fixes for Apache, nginx and Cloudflare. No sign-up, no limits, fully in English and Turkish, and works on mobile.

Spline is a browser-based 3D design tool for creating interactive 3D scenes, animations and experiences for the web. It brings a Figma-like workflow to 3D: designers model objects from primitives, apply materials and lighting and collaborate on the same file in real time, without learning complex tools like Blender or Cinema 4D.

Beyond modeling, Spline adds states, events and physics, so objects can react to hover, click, scroll or keyboard input, plus timelines for animation. AI features generate 3D objects and textures from text or images. Scenes can be published as links, embedded in websites through a viewer, or exported to code for React and Three.js, and dedicated integrations exist for Webflow and Framer. The free plan has limited file creation and no AI credits; Hobby, Pro and Max are priced per seat with unlimited files and growing monthly AI credits, and Enterprise adds SSO, a team library and file version history.

Spline suits web and product designers who want interactive 3D hero sections, product showcases and illustrations. Heavy scenes can hurt page performance, especially on mobile, and it is not a full 3D suite for film or game production. Blender is the free professional modeling tool, Three.js gives developers full control in code, and Rive is a stronger choice for interactive 2D animation.