File checksum manifest creator
Open File checksum manifest creator on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.
Tool capabilities
{
"id": "file-checksum-manifest-creator",
"category": "developer-tools",
"built": true,
"requirements": "Up to 2,000 files, 512 MiB total and 256 MiB per file. Reads files locally in chunks. Hashes detect changes; they do not authenticate who published the manifest.",
"implementation": {
"fields": [
{
"key": "format",
"label": "Manifest format",
"value": "SHA256SUMS",
"type": "select",
"values": [
"SHA256SUMS",
"Happytails JSON v1"
]
}
],
"files": true,
"input": false,
"directory": true,
"multiple": true,
"deferImagePreview": true,
"presentation": "metrics",
"maxFileBytes": 536870912,
"uploadHelp": "Choose one folder, up to 2,000 files and 512 MiB total; 256 MiB per file.",
"note": "Files are read locally in bounded chunks and never changed. Only selected files are inspected. Cancel at any time.",
"experience": {
"automatic": false,
"single": false,
"inputMaxLength": 1000000,
"inputMode": "text",
"label": "Your text",
"placeholder": "Type or paste your input…",
"help": "Up to 1,000,000 characters. Review the settings before running.",
"helpParts": [
"Up to 1,000,000 characters.",
"Review the settings before running."
],
"action": null
},
"mode": "explicit",
"interactive": false
},
"execution": "Browser interface",
"api": null,
"browser_agent": {
"supported": true,
"name": "run_current_tool",
"discovery": "WebMCP on the human page in a supporting browser",
"verification": "See audit/API-AUDIT.md; availability is not verification"
}
}Page guide
Create SHA-256 checksums for a folder, preserving relative paths in a downloadable manifest.
How to use File checksum manifest creator
- Choose the folder you want to inspect.
- Review the options and run the check.
- Read the result and download the report.
Useful next steps
Choose one local folder
Use the folder picker and confirm the files you want to inspect. Nested paths are preserved. Choosing another folder replaces the selection.
Review the result
Create SHA-256 checksums for a folder, preserving relative paths in a downloadable manifest.
Download your report
Save the report or manifest to keep the results. Your source files are unchanged, and the processing stays in your browser.