Spline Review, Pricing & Alternatives (2026)

Spline is a browser-based 3D design platform founded in 2020 by Alejandro Leon and accepted into Y Combinator’s Winter 2021 batch. The company says its community created more than 7 million scenes by August 2024, when it announced a $10 million Series A led by Third Point Ventures. TechCrunch reported a $15 million 2023 seed round and total funding of $16 million at that point. Spline puts modeling, materials, animation, physics, interaction design, collaboration, and publishing in one editor. That scope lets teams move from an idea to a shareable interactive scene without adopting a traditional game engine. Product designers, brand teams, agencies, developers, educators, and creators can therefore use the same browser workflow for concepts, reviews, and published experiences.

A typical project begins in Spline’s 3D editor, where a designer creates or imports geometry, assigns materials and lighting, and then adds animation, events, states, variables, physics, or code. Templates and the Spline Library shorten setup, while shared editing and comments keep review inside one workspace. Publishing can produce web experiences, images, or video, and eligible paid plans add Apple and Android exports. Real-time APIs and webhooks allow scene variables to connect with external data, which can make a finished scene more than a static presentation. Hana provides a separate 2D canvas for interface and motion work. Spline’s AI agents create or modify editable objects, so generated results can remain part of the project rather than existing only as flattened images.

Spline V2, released on August 21, 2026, uses a WebGPU renderer with WebGL fallback and adds a TSL-based rendering backend, PBR materials, image-based lighting, screen-space and planar reflections, physical and HDRI skies, height fog, GPU instancing, faster booleans, GPU hair, and improved physics. These additions affect both visual quality and scene performance, while preserving browser access through the fallback renderer. Its AI Agent edits scenes, materials, lights, animation, interactivity, and code. Claude Code and Cursor can drive the editor through MCP. Hana V2, released on August 28, 2026, adds MCP, WebGPU, GLB and GLTF import, SVG and PDF export, Illustrator import, accessibility contrast checking, and improved collaboration. January 2026 updates included faster Hana 3D-shape performance.

Spline’s Free plan costs $0 and includes limited personal files, unlimited viewers, Spline Library access, watermarked web exports, and 20 MCP tool calls daily. Hobby costs $15 per seat monthly or $12 annually, Pro costs $30 monthly or $25 annually, and Max costs $70 monthly or $60 annually. Paid plans include 2,000, 3,000, or 10,000 AI credits per seat each month, so team size directly affects recurring cost. Extra credits cost $5 monthly per additional 1,000, subject to each plan’s maximum, and unused credits do not roll over. Credits cover AI Agent, AI 3D Generation, AI Textures, and Hana generation. Enterprise uses annual custom pricing with custom credits, security, SSO, self-hosted or code exports, version history, and priority support.

Spline’s main limitation is the cost of combining per-seat subscriptions with credit-based AI usage. Free web exports carry a watermark, and demanding 3D work can require more performance than lightweight design tools. Blender offers deeper modeling and simulation with no subscription, but requires more expertise and a different workflow. Vectary focuses on browser-based 3D modeling and product visualization, while Womp targets accessible 3D creation and animation. Dora focuses on interactive web experiences with 3D support. These alternatives matter when offline control, specialized asset production, or a different interaction workflow outweighs browser collaboration. Pick Spline for browser-based interactive 3D, web publishing, shared review, and AI-assisted scene building, especially when a team values an integrated design-to-delivery workflow.