[{"data":1,"prerenderedAt":391},["ShallowReactive",2],{"blog-is-safe/convex":3},{"id":4,"title":5,"body":6,"category":371,"date":372,"dateModified":372,"description":373,"draft":374,"extension":375,"faq":376,"featured":374,"headerVariant":377,"image":376,"keywords":376,"meta":378,"navigation":379,"ogDescription":380,"ogTitle":376,"path":381,"readTime":382,"schemaOrg":383,"schemaType":384,"seo":385,"sitemap":386,"stem":387,"tags":388,"twitterCard":389,"__hash__":390},"blog/blog/is-safe/convex.md","Is Convex Safe? Security Analysis",{"type":7,"value":8,"toc":356},"minimark",[9,16,21,24,28,70,74,84,89,155,159,162,188,197,201,204,230,234,280,302,306,309,330,344],[10,11,12],"tldr",{},[13,14,15],"p",{},"Convex is a secure reactive backend platform with a strong security model. Server functions run in isolated environments, data validation is built-in, and authentication integrates with major providers. The \"query\" vs \"mutation\" separation enforces read/write permissions at the architecture level. A safe choice for real-time applications.",[17,18,20],"h2",{"id":19},"what-is-convex","What is Convex?",[13,22,23],{},"Convex is a reactive backend platform that combines database, server functions, and real-time sync. It uses TypeScript functions for queries and mutations, with automatic caching and real-time updates. Popular for collaborative apps, dashboards, and real-time features.",[17,25,27],{"id":26},"our-verdict","Our Verdict",[29,30,31,36,55,59],"pros-cons",{},[32,33,35],"h4",{"id":34},"whats-good","What's Good",[37,38,39,43,46,49,52],"ul",{},[40,41,42],"li",{},"Server functions (not client-side)",[40,44,45],{},"Built-in data validation",[40,47,48],{},"Query/mutation separation",[40,50,51],{},"Auth provider integration",[40,53,54],{},"Automatic ACID transactions",[32,56,58],{"id":57},"what-to-watch","What to Watch",[37,60,61,64,67],{},[40,62,63],{},"Public queries need auth checks",[40,65,66],{},"Newer platform",[40,68,69],{},"Custom auth complexity",[17,71,73],{"id":72},"security-architecture","Security Architecture",[75,76,77],"success-box",{},[13,78,79,83],{},[80,81,82],"strong",{},"Server-Side by Default:"," Unlike Firebase, Convex functions run on the server. No security rules to misconfigure-your TypeScript code controls access.",[85,86,88],"h3",{"id":87},"function-types","Function Types",[90,91,92,108],"table",{},[93,94,95],"thead",{},[96,97,98,102,105],"tr",{},[99,100,101],"th",{},"Function Type",[99,103,104],{},"Purpose",[99,106,107],{},"Security",[109,110,111,123,133,144],"tbody",{},[96,112,113,117,120],{},[114,115,116],"td",{},"Query",[114,118,119],{},"Read data",[114,121,122],{},"Add auth checks in code",[96,124,125,128,131],{},[114,126,127],{},"Mutation",[114,129,130],{},"Write data",[114,132,122],{},[96,134,135,138,141],{},[114,136,137],{},"Action",[114,139,140],{},"External APIs",[114,142,143],{},"Runs in isolated environment",[96,145,146,149,152],{},[114,147,148],{},"Internal",[114,150,151],{},"Backend-only",[114,153,154],{},"Not callable from client",[17,156,158],{"id":157},"authentication","Authentication",[13,160,161],{},"Convex integrates with authentication providers:",[37,163,164,170,176,182],{},[40,165,166,169],{},[80,167,168],{},"Clerk:"," First-class integration",[40,171,172,175],{},[80,173,174],{},"Auth0:"," JWT verification",[40,177,178,181],{},[80,179,180],{},"Custom:"," Any JWT provider",[40,183,184,187],{},[80,185,186],{},"Anonymous:"," For public data",[189,190,191],"info-box",{},[13,192,193,196],{},[80,194,195],{},"Key Point:"," Authentication verifies identity, but you must add authorization checks in your functions to control what authenticated users can access.",[17,198,200],{"id":199},"data-validation","Data Validation",[13,202,203],{},"Convex provides built-in validation:",[37,205,206,212,218,224],{},[40,207,208,211],{},[80,209,210],{},"Schema validation:"," Define types for all tables",[40,213,214,217],{},[80,215,216],{},"Argument validation:"," Validate function inputs",[40,219,220,223],{},[80,221,222],{},"Type safety:"," TypeScript catches errors at compile time",[40,225,226,229],{},[80,227,228],{},"Runtime checks:"," Schema enforced on every write",[17,231,233],{"id":232},"security-best-practices","Security Best Practices",[90,235,236,246],{},[93,237,238],{},[96,239,240,243],{},[99,241,242],{},"Practice",[99,244,245],{},"Implementation",[109,247,248,256,264,272],{},[96,249,250,253],{},[114,251,252],{},"Auth checks",[114,254,255],{},"Check ctx.auth in every query/mutation",[96,257,258,261],{},[114,259,260],{},"Data ownership",[114,262,263],{},"Store userId with records, verify on access",[96,265,266,269],{},[114,267,268],{},"Input validation",[114,270,271],{},"Use argument validators (v.string(), etc.)",[96,273,274,277],{},[114,275,276],{},"Sensitive operations",[114,278,279],{},"Use internal functions, call from mutations",[281,282,283,290,296],"faq-section",{},[284,285,287],"faq-item",{"question":286},"Is Convex safe for production?",[13,288,289],{},"Yes, Convex is designed for production with server-side functions, ACID transactions, and built-in validation. Add proper auth checks to your functions and you have a secure backend.",[284,291,293],{"question":292},"How does Convex compare to Firebase?",[13,294,295],{},"Convex functions run server-side (safer by default), while Firebase relies on security rules. Convex uses TypeScript for logic; Firebase uses a custom rules language. Both can be secure, but Convex's model is harder to misconfigure.",[284,297,299],{"question":298},"Can clients call any Convex function?",[13,300,301],{},"Clients can call queries, mutations, and actions (not internal functions). You control access by checking authentication and authorization in each function before returning or modifying data.",[17,303,305],{"id":304},"further-reading","Further Reading",[13,307,308],{},"Ready to secure your setup? Check out our hands-on guides.",[37,310,311,318,324],{},[40,312,313],{},[314,315,317],"a",{"href":316},"/blog/checklists/pre-deployment-security-checklist","Pre-deployment security checklist",[40,319,320],{},[314,321,323],{"href":322},"/blog/getting-started/first-scan","Run your first security scan",[40,325,326],{},[314,327,329],{"href":328},"/blog/best-practices/environment-variables","Environment variable best practices",[331,332,333,339],"related-articles",{},[334,335],"related-card",{"description":336,"href":337,"title":338},"Compare backend approaches","/blog/is-safe/firebase","Is Firebase Safe?",[334,340],{"description":341,"href":342,"title":343},"PostgreSQL-based alternative","/blog/is-safe/supabase","Is Supabase Safe?",[345,346,349,353],"cta-box",{"href":347,"label":348},"/","Start Free Scan",[17,350,352],{"id":351},"using-convex","Using Convex?",[13,354,355],{},"Scan your project for missing auth checks and security issues.",{"title":357,"searchDepth":358,"depth":358,"links":359},"",2,[360,361,362,366,367,368,369,370],{"id":19,"depth":358,"text":20},{"id":26,"depth":358,"text":27},{"id":72,"depth":358,"text":73,"children":363},[364],{"id":87,"depth":365,"text":88},3,{"id":157,"depth":358,"text":158},{"id":199,"depth":358,"text":200},{"id":232,"depth":358,"text":233},{"id":304,"depth":358,"text":305},{"id":351,"depth":358,"text":352},"is-safe","2026-02-11","Is Convex safe for production? Security analysis covering reactive backend security, server functions, authentication, and data validation.",false,"md",null,"amber",{},true,"Security analysis of Convex reactive backend covering server functions, auth, and data security.","/blog/is-safe/convex","5 min read","[object Object]","Article",{"title":5,"description":373},{"loc":381},"blog/is-safe/convex",[],"summary_large_image","4RcIQh9XjKoh-Ld9-t9psBrY3BcXr1Wjl705YOBdKmw",1775843924704]