Inspect, sanitize, and verify files before sharing them. All tools execute 100% locally inside your browser's memory — zero data is uploaded to remote servers.
Deeply inspect MIME types, dimensions, audio/video durations, hidden camera tags, and SHA-256 binary checksums.
Inspect File Privately →Strip hidden EXIF camera metadata, timestamps, and GPS location data from JPG, PNG, and WebP images.
Strip EXIF Data →Calculate SHA-256, SHA-512, SHA-1, and MD5 checksums for strings and binary files using the Web Crypto API.
Generate Hashes →Encode and decode plain text, binary files, and Data URLs safely without leaking data to external encoders.
Open Base64 Tool →When you upload files to traditional online converters, your documents, family photos, and confidential assets pass through third-party servers where they can be logged, scraped, or retained.
FreeFileTool solves this by shifting 100% of the computational workload into your local browser sandbox. You get all the convenience of web tools with the privacy and security of offline desktop software.