Carbon

Carbon

carbon.now.sh · Verified Sep 17, 2026 ·
Open Tool

Description

Create and share beautiful images of your source code. Choose from dozens of syntax themes, languages, and export to PNG or SVG.

No-Login Task

"Generate beautiful images of source code snippets"

Editorial Review & Verification

Hands-on Verified
Best For

Generating elegant, high-resolution syntax-highlighted code snippet images in PNG or SVG formats without account registration

No-Login Alternative To: Ray.so Snappify Manual IDE screenshots

+ Key Strengths (Pros)

  • ✓ Completely free and open-source code card generator accessible without login
  • ✓ Extensive customization options including dozens of editor themes, languages, padding controls, and macOS window styling
  • ✓ Direct client-side rendering supporting unwatermarked PNG and SVG downloads as well as clipboard image copying

− Limitations (Cons)

  • − Saving custom configuration presets to a persistent user profile requires a GitHub account
  • − Large code snippets with hundreds of lines can result in very tall aspect-ratio image artifacts

Deep Privacy & Sandbox Audit & Product Power & Utility Review

🛡️ Audited & Certified by NoLoginTools.org
A
Privacy Grade
High-Assurance Privacy
Security & Sandbox Index
75 / 100
Data Sandbox & Storage Isolation 25 / 25
Zero Trackers & Telemetry Hygiene 25 / 25
Source Transparency & Auditability 25 / 25
Availability & Infrastructure Resilience 0 / 25

Zero payload egress observed. Code syntax highlighting and canvas rendering execute entirely in local browser memory without transmitting code snippets to remote servers.

⚡
Product Power Index
95 / 100
★ Editor's Choice
📊 5-Dimension Performance Radar 5D CADES
Radar chart displaying 5 dimensions: Frictionless, Depth, Export, Privacy, Polish Frictionless UX: 19/20 (95%) Functional Depth & Fidelity: 24/25 (96%) Export Freedom: 19/20 (95%) Privacy & Data Sovereignty: 19/20 (95%) Stability & Polish: 14/15 (93%) Frictionless UX (19/20) Functional Depth & Fidelity (24/25) Export Freedom (19/20) Privacy & Data Sovereignty (19/20) Stability & Polish (14/15)
Frictionless UX 19 / 20
Instant start without signup, account wall, or modal traps
Functional Depth & Fidelity 24 / 25
Full core workflow completion, feature richness, and input fidelity
Export Freedom 19 / 20
Unrestricted download in standard formats with zero watermarks
Privacy & Data Sovereignty 19 / 20
In-browser memory sandbox, zero tracking egress, and data hygiene
Stability & Polish 14 / 15
Visual typography, layout ergonomics, and reliable runtime recovery
🔬 Hands-on Lab Notes Audited in 2026-09

Rendered JavaScript snippet in Seti theme and downloaded 131706 bytes PNG artifact at 974x522 resolution with 0 outgoing network payloads.

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/carbon-app/carbon
  • ✓ OSI-recognized open license: MIT
  • ✓ 36,105 GitHub community stars
Availability & Infrastructure Resilience 0 / 25
Currently Unreachable
  • ✗ Failed recent automated reachability tests
  • ✗ Archived snapshot available for historical inspection
  • ✗ Community status report flagged for admin re-evaluation

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 Development
Processing Client-Side Only
Pricing Free
Privacy Architecture Verdict

Zero payload egress observed. Code syntax highlighting and canvas rendering execute entirely in local browser memory without transmitting code snippets to remote servers.

Tags

Health History

14 days ago → Today · Uptime: 0%

Repository

carbon-app/carbon

★ 36.1k ·Ⓟ 2k · JavaScript · MIT · Updated 17h ago

FAQ

Does Carbon require an account?
No. Carbon has been verified by nologin.tools to provide its core functionality — Generate beautiful images of source code snippets — without requiring any login or signup.
Is Carbon free to use?
Carbon 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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