# DevDesk App > Free, privacy-first, browser-based online developer and daily-use tools. DevDesk App (devdeskapp.com) provides 250+ free, fast, browser-based utilities for developers, network engineers, and daily productivity. All computations run 100% locally in your browser. ## Tools - [JSON Formatter](https://devdeskapp.com/json-formatter): Format, validate, and beautify JSON data. - [Base64 Encoder / Decoder](https://devdeskapp.com/base64-string-converter): Encode and decode Base64 strings. - [Hash Generator](https://devdeskapp.com/hash-text): Generate MD5, SHA-1, SHA-256, and SHA-512 hashes. - [UUID Generator](https://devdeskapp.com/uuid-generator): Generate random UUIDs (v1, v4, v5). - [Cron Expression Parser](https://devdeskapp.com/cron-expression-parser): Parse and explain cron schedule expressions. - [IPv4 Subnet Calculator](https://devdeskapp.com/ipv4-subnet-calculator): Calculate CIDR network subnets, IP ranges, and netmasks. - [IPv6 Expander & Compressor](https://devdeskapp.com/ipv6-expander-compressor): Expand and compress IPv6 addresses. - [JWT Parser](https://devdeskapp.com/jwt-parser): Decode and inspect JSON Web Tokens safely. - [Bcrypt Generator](https://devdeskapp.com/bcrypt): Generate and verify Bcrypt password hashes. - [CSS Clamp Calculator](https://devdeskapp.com/css-clamp-calculator): Generate fluid typography CSS clamp() functions. ## Optional - [Full Sitemap](https://devdeskapp.com/sitemap.xml): XML sitemap containing all 261 tool URLs. - [About DevDesk App](https://devdeskapp.com/about): Overview and mission of DevDesk App. - [Privacy Policy](https://devdeskapp.com/privacy-policy): Privacy and zero-data collection policy.