Which layers are opened automatically?
The first release opens supported Data URI, Base64/Base64URL, hex and GZIP layers. It then detects the final file or text format and links to a focused tool for deeper inspection.
Universal Payload Inspector
Inspect unknown files, Base64, Base64URL, hex, Data URI, GZIP, structured text, and binary payloads through a bounded layer-by-layer analysis.
Inspect an unknown payload
Automatic mode follows only supported, evidence-backed encoding and compression layers. The original input stays in this browser and no detected content is executed.
Input: 0 KB
Analysis result
The detected layers will appear here
Analyze a text payload or file to see transformation evidence, detected format, passive preview, final bytes, SHA-256, and focused next tools.
Understand the layers before choosing a specialized decoder
Universal Payload Inspector accepts unknown text or files, records each supported encoding and compression transformation, then runs shared file detection and passive preview on the final bytes. Evidence and confidence remain visible so automatic detection is not presented as certainty.
Automatic analysis boundaries
- Automatic recursion currently opens Data URI, Base64/Base64URL, hex and GZIP layers. Other detected containers remain intact and are handed to the matching focused inspector.
- A detected signature or readable preview is not a validity, trust, antivirus, or malware result. Active document content, scripts, macros, formulas, executables and network requests are not run.
- Input, output, expansion-ratio, nested-layer and worker-time limits stop payloads that could make the browser unresponsive.
- Heuristic Base64 and hex detection is conservative. Select the representation explicitly when an unpadded or ambiguous value must be decoded.
Related tools for this workflow
Continue with tools that decode, convert, inspect, or verify the same data.
- Encoded data
Base64 Decoder & Encoder
Decode Base64 text or files, or encode UTF-8 text and raw file bytes locally.
Open tool - Compression & archives
GZIP Compressor & Decompressor
Compress text or files and safely decompress GZIP or Base64-encoded GZIP data locally.
Open tool - Binary analysis
Hex Viewer & Binary Inspector
Inspect file bytes, pasted hex, offsets, ASCII, numeric values, and magic-byte signatures.
Open tool - Compression & archives
Archive Inspector – ZIP, TAR & GZIP Viewer
Browse ZIP, TAR, TAR.GZ, and GZIP entries, preview supported files, and download individual entries.
Open tool
Trace a Base64 → GZIP → JSON payload
Paste the payload with Auto-detect selected and analyze it. Review the evidence for every layer, inspect the final JSON, verify its SHA-256, download the exact final bytes, or continue in JSON Formatter, GZIP, Base64, or Hex Viewer.
Unknown payload
H4sIA…Evidence-ranked layers
Text → Base64 → GZIP → JSON
Final bytes: 156 B · SHA-256 availableUniversal Payload Inspector FAQ
Does the inspector execute the detected file?
No. Previews are passive and active content is disabled. Executables and unknown binary files remain bytes with metadata and hex views.
Why did automatic analysis leave my Base64 as text?
Automatic mode avoids decoding ambiguous alphabet-only text without enough structural evidence. Select Base64 / Base64URL explicitly when you know the representation.
Does format detection prove a payload is safe or valid?
No. Detection reports structural evidence and confidence. It is not a schema validation, signature trust, antivirus, or malware scan.