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ZIP, inspect, hash, rename, and analyze files without leaving your device.
12 tools in this category
File utilities help you zip and unzip archives, inspect metadata, hash files, detect MIME types, rename batches, estimate sizes, and spot duplicates - without installing dedicated desktop archive software for small jobs.
Large archives are limited by browser memory. For multi-gigabyte projects, a desktop tool may still be more comfortable.
Choose a file utility below to archive, inspect, or organize files locally.
Browser file access is limited by what you select in the file picker. Nested folder support depends on the browser APIs available.
12 tools in this category
File Utilities
Create ZIP archives from multiple files with compression level control — fully in the browser.
File Utilities
List ZIP contents, filter paths, and extract files entirely in the browser.
File Utilities
Inspect file name, size, MIME type, extension, and last modified date in a table.
File Utilities
MD5, SHA-1, SHA-256, or SHA-512 file hashes with optional expected-hash verify.
File Utilities
Compare browser MIME type with a common extension map for each file.
File Utilities
Batch rename with patterns, find/replace, index padding, and download copies.
File Utilities
Find duplicate groups by name, size, name+size, or full content hash.
File Utilities
Sum file sizes with per-file percentages, totals, and average — live as you drop files.
File Utilities
Open CSV/TSV as a scrollable table with delimiter presets, filter, and row limits.
File Utilities
Trim cells, drop empty rows/columns, add UTF-8 BOM, and download Excel-friendly CSV.
File Utilities
Split large text or CSV files by rows, lines, or bytes — download parts individually or all.
File Utilities
Detect likely character encodings of text files with confidence scores (jschardet).