Extensions for lmsys.org
27 browser extensions built for lmsys.org. Compare features, permissions, and safety across Chrome, Firefox, and Edge.
Open in the full catalog with filters →AI Chat Conversation History Search
Search your AI chat history locally across supported chat websites.
Prompt Genius
Supercharge your AI prompts with one click. Works on any AI platform.
Memory Box
Give every AI assistant Shared memory. Auto-capture chats, semantic search, prompt optimization, auto-redaction — stored locally.
Tokenizer Live Token and Cost Monitor
Real-time token counts, costs & energy usage on ChatGPT, Claude, Gemini, Grok, DeepSeek + 25 more. Free, open source.
tokenizer-token-cost-monitor
Real-time token counts, costs & energy usage on ChatGPT, Claude, Gemini, Grok, DeepSeek + 25 more. Free, open source.
AI Context Vault
Injects saved memory into AI chats 🧠. Bookmarks, context snippets, encrypted Gist sync. More tools coming soon 🚀
Aegis Personal
Protect your privacy on AI chatbots. Auto-masks personal information before it reaches AI. 100% local.
Genie Prompt Optimizer
Get a professional AI prompt with a magical touch effortlessly✨!
CleanMyPrompt - AI Privacy Firewall
Strip PII, API keys & secrets before pasting into ChatGPT, Claude, Gemini & 25+ AI tools. Auto-cleans on paste. 100% local — nothing leaves your browser.
Tokeny
Live token counter for AI chat interfaces — with context rot warnings.
AI Prompt Suggester
Get AI prompt suggestions for various chat platforms
AI思考スコア
AIが思考中の時間をRPGのスコアゲームに。思考するたびにレベルが上がる、開発者のためのビジュアライザー。
Be Mimos: AI Chat Export, Search & Backup
Auto-save, export, search and curate your conversations across 33+ AI and creative platforms.
AI Prompt Refinement
Improve your AI prompts with one click.
Umbrion AI Guardrails
Licensed AI monitor: real-time data exposure warnings, custom keywords, file alerts, redacted JSON export. Activates via license.
Shadow AI Protector
Détecte et anonymise vos données sensibles (emails, IBAN, mots de passe, IP, AD) sur 42+ plateformes IA.
NorwAI Shield
Beskytter mot datalekkasjer til AI. Oppdager fødselsnummer, kredittkort, bankkonto og sensitiv data i sanntid.
AI Prompt Suggester
No description
ÆGIS Extractor
No description
Kasbah Guard
Local-first guard that intercepts prompts and actions on AI chat services to prevent leaks and enforce user control.
NorwAI Shield
Beskytter mot datalekkasjer til AI. Oppdager fødselsnummer, kredittkort, bankkonto og sensitiv data i sanntid.
OpsAI Shield
Detects and masks sensitive data before sending to AI tools. 100% local processing. No servers, no tracking.
Inkpour
Export AI chat conversations (ChatGPT, Claude, Gemini, Copilot, and more) to Markdown, PDF, HTML, DOCX or ZIP.
Preempt AI - Security for AI Applications
Security for AI applications with ML-powered threat detection. Protect your prompts before sharing with AI assistants.