Checksec Anywhere: Browser-Based ELF, PE, Mach-O Analysis

Checksec Anywhere is a new browser-based binary analysis tool from Trail of Bits. It consolidates traditional checksec utilities for ELF, PE and Mach-O formats into a single interface. The tool runs entirely locally via WebAssembly, ensuring user privacy by never uploading binaries to a server. With a Rust core compiled to Wasm and leveraging crates like Goblin and iced_x86, Checksec Anywhere delivers fast, accurate exploitation mitigation checks such as ASLR, DEP, stack canaries, Control Flow Guard, ARC and code signing. Users simply drag and drop files or directories into the browser to receive color-coded security reports in seconds. The platform supports SARIF export for CI/CD integration, shareable static URLs, batch processing and a tabbed interface for multiple analyses. Future work includes adding mobile and firmware formats, plus new security checks like constant-time execution verification. Checksec Anywhere removes installation and dependency barriers, offering a private, high-performance solution for multi-format binary analysis.