Cubic Bezier

Cubic Bezier

cubic-bezier.com · Verified Feb 21, 2026 ·
Open Tool

Description

Visual CSS cubic-bezier timing function editor. Drag control points to create custom easing curves and compare with presets.

No-Login Task

"Edit CSS bezier easing curves"

Editorial Review & Verification

Hands-on Verified
Best For

Crafting custom CSS transition timing functions and comparing easing curves with real-time motion playback.

No-Login Alternative To: easings-net animista-net keyfr-me
💡 Top-Rated Workstation in this Category ⚡ 96 · Editor's Choice
Excalidraw

Sketching hand-drawn diagrams, architecture schematics, and interactive wireframes with client-side privacy.

View Workstation →

+ Key Strengths (Pros)

  • ✓ Interactive dual-handle coordinate canvas with instant URL hash state synchronization for effortless curve sharing
  • ✓ Side-by-side visual motion comparison engine testing custom curves against standard web presets (ease, linear, ease-in-out)

− Limitations (Cons)

  • − Limited to 2D cubic-bezier curves without multi-segment keyframe or spring physics calculation

Deep Privacy & Sandbox Audit & Product Power & Utility Review

🛡️ Audited & Certified by NoLoginTools.org
A+
Privacy Grade
Gold Standard: Zero Account
Security & Sandbox Index
100 / 100
Data Sandbox & Storage Isolation 25 / 25
Zero Trackers & Telemetry Hygiene 25 / 25
Source Transparency & Auditability 25 / 25
Availability & Infrastructure Resilience 25 / 25

Observed network egress during session operation was zero outgoing payloads. Easing curve mathematical algorithms and canvas animation render entirely in the browser.

⚡
Product Power Index
84 / 100
✓ Highly Recommended
📊 5-Dimension Performance Radar 5D CADES
Radar chart displaying 5 dimensions: Frictionless, Depth, Export, Privacy, Polish Frictionless UX: 18/20 (90%) Functional Depth & Fidelity: 18/25 (72%) Export Freedom: 17/20 (85%) Privacy & Data Sovereignty: 18/20 (90%) Stability & Polish: 13/15 (87%) Frictionless UX (18/20) Functional Depth & Fidelity (18/25) Export Freedom (17/20) Privacy & Data Sovereignty (18/20) Stability & Polish (13/15)
Frictionless UX 18 / 20
Instant start without signup, account wall, or modal traps
Functional Depth & Fidelity 18 / 25
Full core workflow completion, feature richness, and input fidelity
Export Freedom 17 / 20
Unrestricted download in standard formats with zero watermarks
Privacy & Data Sovereignty 18 / 20
In-browser memory sandbox, zero tracking egress, and data hygiene
Stability & Polish 13 / 15
Visual typography, layout ergonomics, and reliable runtime recovery
🔬 Hands-on Lab Notes Audited in 2026-09

Rendered interactive bezier curve in 0 ms freeze time with 0.00 CLS; copied 29-character CSS timing string to clipboard.

Data Sandbox & Storage Isolation 25 / 25
In-Browser RAM Sandbox
  • ✓ Client-side processing is supported by catalog metadata and runtime evidence
  • ✓ Bounded runtime observation found no payload egress; this is not architectural proof
  • ✓ Runs locally without persistent server dependencies
Zero Trackers & Telemetry Hygiene 25 / 25
Zero Third-Party Trackers
  • ✓ No commercial ad networks or cross-site tracking beacons
  • ✓ Zero tracking pixels or third-party behavioral profiling scripts
  • ✓ Clean script execution environment without user fingerprinting
Source Transparency & Auditability 25 / 25
Open Source (MIT)
  • ✓ Publicly auditable code repository at https://github.com/LeaVerou/cubic-bezier
  • ✓ OSI-recognized open license: MIT
  • ✓ 184 GitHub community stars
Availability & Infrastructure Resilience 25 / 25
High Uptime & Sub-Second Latency
  • ✓ Fully operational with fast edge response (~164ms)
  • ✓ Verified active on Cloudflare automated 6h health probe
  • ✓ Reliable service accessibility without login barriers

NoLogin Lab™ Verified Telemetry & Empirical Audit

CADES 2.0 Empirical Test
🛡️ Network Payload Sniffing Verified Zero-Egress (Local Only)

Zero data retention; all operations executed strictly in local client memory.

Audit: verified-consistent
💻 Execution Sandbox Engine Local Only

Local client-side execution utilizing in-browser WebAssembly, Canvas, or Web Audio APIs.

Sandbox: Client-Side Only
📦 Artifact & Watermark Check 100% Lossless & Watermark Free

Direct lossless file export in open standard formats without forced watermarks or paywall modals.

Ad Tier: zero-ads
⚡ Access Velocity & Friction Instant Launch (<500ms)

Primary operational canvas becomes interactive immediately upon URL load with zero registration intercept.

Onboarding: 0-Click Gate
📜 Source Code & Governance Public Source Repository Verified

Verified open-source repository with active developer community tracking and public codebase.

License: MIT GitHub Repo →

Verification Details

Account None Required
Category Design
Processing Client-Side Only
Pricing Free
Privacy Architecture Verdict

Observed network egress during session operation was zero outgoing payloads. Easing curve mathematical algorithms and canvas animation render entirely in the browser.

Tags

Design ,Open Source, Free ,Web App, Client-Side Only

Health History

14 days ago → Today · Uptime: 100%

Repository

LeaVerou/cubic-bezier

★ 184 ·Ⓟ 45 · JavaScript · MIT · Updated 6mo ago

FAQ

Does Cubic Bezier require an account?
No. Cubic Bezier has been verified by nologin.tools to provide its core functionality — Edit CSS bezier easing curves — without requiring any login or signup.
Is Cubic Bezier free to use?
Cubic Bezier is listed on nologin.tools as a tool you can use without creating an account. Check the tool's own site for details on pricing or premium features.

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