Low Level

Decompiler

• DogBolt - Multiple decompiler online.
• Gidra
• IDA (Freemium)

Binary Analysis

• CyberChef / github - Analysing and en/decoding data.
• HexEdit - Analyse and edit binary files.

🕵️ Forensic

• Forensic Tools list.
• Awesome Forensic (list)
• Volatility 3 / Cheatsheet - Framework for extracting digital artifacts from RAM.
• Hindsight - Web Browser forensics for Chromium.

🔢 Metadata Analysis

🖼️ Images

• Exiftool (online) | Exiftool (CLI) – Extract metadata from images.
• Jimpl – Online metadata analyzer.

📁 Documents

• PDF Examiner – Extract PDF metadata and check security.
• ExtractMetadata - Extract metadata from various files type.
• PDF24 Tools

🔬 Stegano

• Aperi'Solve
• StegOnline
• FotoForensics
• TweakPNG - Examining & modifying PNG image files.
• zsteg – CLI tool for hidden PNG/BMP data.

🎵 Audio

• AudaCity - WavaCity (online version)
• ffprobe – CLI tool to analyze audio/video files.