StackEdit

StackEdit

stackedit.io · Verified Feb 21, 2026 ·
Open Tool

Description

Full-featured in-browser Markdown editor. Sync with Google Drive and GitHub, live preview, scroll sync, and offline support.

No-Login Task

"Edit Markdown in the browser"

Editorial Review & Verification

Hands-on Verified
Best For

Full-featured in-browser Markdown authoring with synchronized preview, KaTeX math, and offline document storage.

No-Login Alternative To: dillinger-io hackmd-io marktext

+ Key Strengths (Pros)

  • ✓ Comprehensive Markdown workstation supporting synchronized HTML preview, KaTeX math typesetting, and local file tree management
  • ✓ Verified clean unwatermarked file downloads (7,176-byte Markdown document) and offline browser persistence

− Limitations (Cons)

  • − Direct PDF and Pandoc compilation formats are marked as sponsored features

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. File storage, syntax parsing, and HTML export render locally within the browser.

⚡
Product Power Index
85 / 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: 19/20 (95%) Stability & Polish: 13/15 (87%) Frictionless UX (18/20) Functional Depth & Fidelity (18/25) Export Freedom (17/20) Privacy & Data Sovereignty (19/20) 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 19 / 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

Loaded 7,173-byte document across 143 lines with synchronized preview in 138 ms; exported unwatermarked 7,176-byte Markdown file.

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
  • ✓ Verified full offline execution capability
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 (Apache-2.0)
  • ✓ Publicly auditable code repository at https://github.com/benweet/stackedit
  • ✓ OSI-recognized open license: Apache-2.0
  • ✓ 23,101 GitHub community stars
Availability & Infrastructure Resilience 25 / 25
High Uptime & Sub-Second Latency
  • ✓ Fully operational with fast edge response (~334ms)
  • ✓ 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: Apache-2.0 GitHub Repo →

Verification Details

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

Observed network egress during session operation was zero outgoing payloads. File storage, syntax parsing, and HTML export render locally within the browser.

Tags

Health History

14 days ago → Today · Uptime: 100%

Repository

benweet/stackedit

★ 23.1k ·Ⓟ 2.8k · JavaScript · Apache-2.0 · Updated 6d ago

FAQ

Does StackEdit require an account?
No. StackEdit has been verified by nologin.tools to provide its core functionality — Edit Markdown in the browser — without requiring any login or signup.
Is StackEdit free to use?
StackEdit 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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