Pasteguard vs Push Security

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-09-01
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At a glance

DimensionPasteguardPush Security
PricingFree (open-source, local-first)Freemium (free tier limited; paid plans available)
Primary FocusData privacy proxy for AI chat & coding agentsBrowser security & AI visibility for enterprises
DeploymentLocal-first; Docker, browser extension, API proxyCloud-based; browser extension
Key IntegrationsOpenAI, Anthropic, Google Gemini, Codex, Claude Code, Cursor, WindsurfOkta, Azure AD, Google Workspace, Slack, Splunk, Snowflake
Best ForTeams & developers masking PII before cloud AISecurity teams needing browser attack detection & AI usage control
Latest NewsNo recent newsRecent insights on poisoned tenant attacks & AI security maturity

Choose Push Security if you're an enterprise security team facing browser-based attacks (AiTM, session hijacking, shadow AI) and need real-time visibility across all browsers. Choose PasteGuard if you're a developer or small team that simply wants to mask PII before it reaches AI services like ChatGPT or coding agents, with a free, local-first, open-source tool. They target different problems: Push is for defense-in-depth against sophisticated threats; PasteGuard is for privacy compliance in AI usage.

Try PasteguardTry Push Security
Pasteguard
Pasteguard

Mask PII and secrets before they reach ChatGPT, Claude, or any AI API.

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Push Security
Push Security

Browser-native security that stops AI-driven attacks and secures employee AI usage

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Pricing
Free
Freemium
Plans
$0/mo
$5/user/month
Custom
Popularity
2 views
7.5k views
Skill Level
Intermediate
Advanced
API Available
Platforms
WebAPIPlugin
Web
Categories
🔒 Security & Privacy🛡️ AI Governance & Guardrails
🚨 Threat Detection & SOC🔒 Security & Privacy
Features
Detects 30+ PII types (names, emails, phones, credit cards, IBANs, VAT, etc.)
Detects secrets: API keys, SSH keys, JWTs, passwords, connection strings
Placeholder replacement like [[PERSON_1]], [[EMAIL_1]]
Placeholder restoration in responses where supported
Browser extension for ChatGPT, Claude, and Gemini (beta)
Keyboard shortcut ⌘⇧K for manual masking selected text
OpenAI-compatible HTTP proxy (base URL http://localhost:3000/openai/v1)
Anthropic-compatible HTTP proxy (base URL http://localhost:3000/anthropic)
Coding agent masking for .env and config files
Local-first architecture, no telemetry
Self-hosted via Docker on localhost or server
Live request dashboard with scan time, masked %, PII types
Mask mode and Route mode for handling sensitive requests
Multi-language detection (EN, IT, ES, FR shown in dashboard)
Behavioral phishing detection
Adversary-in-the-Middle (AiTM) phishing detection and blocking
ClickFix / clipboard injection blocking
Device code phishing detection and blocking
Malicious OAuth consent blocking
Session hijacking detection
Credential stuffing detection
Ghost login detection and SSO guardrails
MFA enforcement via in-browser guardrails
Shadow AI app discovery and inventory
AI prompt and data input monitoring
AI file upload monitoring and blocking
Agentic browser detection (Comet, Atlas, Dia)
Autonomous threat hunting agents
Browser extension inventory, risk scoring, and blocking
Integrations
ChatGPT
Claude
Gemini
OpenAI API
Anthropic API
HTTP APIs
Codex
Claude Code
Cursor
Windsurf
Okta
Google Workspace
Microsoft 365
Microsoft Teams
Microsoft Sentinel
Datadog
Splunk Cloud
SentinelOne
Slack
Webhooks
REST API

What real users say: Pasteguard vs Push Security

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Pasteguard

38 mentions across 3 sources · 55% positive — mixed

Hacker News, YouTube, GitHub

What users praise

  • • Free and open-source (Apache 2.0) with a local-first architecture.
  • • Automatically detects over 30 types of PII and secrets.
  • • Preserves AI context by replacing data with placeholders like [[EMAIL_1]].
  • • Supports multiple AI providers: ChatGPT, Claude, Gemini, and coding agents.

What frustrates them

  • • Reliability issues: 400 errors with Claude Code and long-context DOMException.
  • • Docker startup crashes reported by some users.
  • • Limited community support and sparse documentation for integrations.
  • • Configuring with LibreChat and other tools requires manual setup.

Researched Aug 1, 2026

Push Security

30 mentions across 3 sources · 43% positive — mixed

Hacker News, YouTube, Lemmy

What users praise

  • • Works as a lightweight extension across all major browsers without forcing a single proprietary browser.
  • • Detects advanced threats like AiTM phishing, ClickFix, session hijacking, and malicious OAuth flows.
  • • Autonomous hunting agents analyze browser telemetry to write and deploy detection rules at machine speed.
  • • Provides comprehensive AI usage governance: inventory, prompt monitoring, file upload blocking, and unsanctioned app control.

What frustrates them

  • • No independent community feedback or real-user reviews available to verify claims.
  • • Requires advanced security expertise to configure and interpret telemetry effectively.
  • • High-fidelity telemetry collection may trigger privacy and compliance red flags.
  • • Potential for false positives in blocking legitimate OAuth and extension actions.

Researched Aug 26, 2026

Who should pick which

  • Enterprise security team
    Pick: Push Security

    Needs detection of sophisticated browser attacks (AiTM, session hijacking) and AI governance across all browsers; Push Security provides agentic threat hunting and integrations with SIEM/IdP.

  • Developer using coding agents with production secrets
    Pick: Pasteguard

    PasteGuard masks API keys, passwords, and PII before they reach Codex, Claude Code, or Cursor; local-first and free.

  • Compliance officer enforcing data privacy in AI chat
    Pick: Pasteguard

    PasteGuard auto-detects 30+ PII types and replaces them with placeholders, ensuring no sensitive data reaches cloud AI; open-source and auditable.

  • Security operations center analyst
    Pick: Push Security

    Push Security's agentic threat hunting and real-time telemetry provide rapid detection of novel browser-based attacks, integrating with Splunk/Snowflake.

  • Solo founder with minimal budget
    Pick: Pasteguard

    Free, easy to deploy via Docker, and covers essential AI privacy needs without enterprise overhead.

Frequently Asked Questions

Pasteguard vs Push Security: which should you choose?

Choose Push Security if you're an enterprise security team facing browser-based attacks (AiTM, session hijacking, shadow AI) and need real-time visibility across all browsers. Choose PasteGuard if you're a developer or small team that simply wants to mask PII before it reaches AI services like ChatGPT or coding agents, with a free, local-first, open-source tool. They target different problems: Push is for defense-in-depth against sophisticated threats; PasteGuard is for privacy compliance in AI usage.

Can PasteGuard block sophisticated phishing attacks like AiTM?

No, PasteGuard is not a security tool for attack detection; it only masks PII before it reaches AI providers.

Does Push Security provide PII masking for AI chat?

Push Security offers in-browser DLP for AI tools (clipboard, file uploads) but does not auto-mask PII with placeholders like PasteGuard.

Which tool is better for compliance with GDPR?

PasteGuard directly masks PII before sending to AI; Push Security helps with AI usage visibility and controls, both can support compliance depending on needs.

Is PasteGuard truly free?

Yes, PasteGuard is open-source (Apache 2.0) and free to use, with no paid tiers.

Does Push Security require a browser extension on every device?

Yes, Push Security deploys a browser extension across major browsers for telemetry and enforcement.

Can I run PasteGuard fully offline?

No, PasteGuard routes masked data to cloud AI; but in Route mode, sensitive requests can go to a local LLM.

Which tool integrates with coding agents like Cursor?

PasteGuard has explicit support for env file masking and an API proxy compatible with Codex, Claude Code, Cursor, Windsurf.

Does Push Security detect shadow SaaS?

Yes, Push Security detects ghost logins and shadow SaaS via browser telemetry.

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Explore each tool further

Pasteguard
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Push Security
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Last reviewed: July 3, 2026