File Tools Suite

Triage a mixed batch locally for file type mismatches, duplicate candidates, metadata privacy, archive risks, and next-step tools.

Compute SHA-1, SHA-256, SHA-384, or SHA-512 hashes for uploaded files entirely in the browser.

Upload files and inspect filename, size, browser MIME type, extension, and magic-byte signature locally.

Upload a batch and find exact duplicate files by SHA hash locally, with a Markdown cleanup report.

Upload a batch, generate safe new filenames with sequence numbers and case rules, then export a CSV plan.

Upload a small file and convert it to raw Base64 or a data URL locally for embeds, fixtures, and tests.

Paste raw Base64 or a data URL, decode it locally, inspect bytes, and download the reconstructed file.

Read a ZIP central directory locally and flag traversal paths, encryption, duplicate names, and risky ratios.

Upload a text file and remove BOM, null bytes, trailing spaces, and excessive final blank lines locally.

Upload or paste text and convert CRLF, CR, and LF endings to a consistent LF or CRLF output locally.

Paste an expected checksum, upload a file, and verify SHA digest matches locally before installing or sharing.

Upload TTF or OTF files and extract family names, PostScript names, version, units per em, glyph count, and table list.

Inspect DOCX, XLSX, and PPTX package structure for macros, media, embedded objects, custom XML, and size hotspots.

Upload PDFs and extract document metadata, page-count hints, encryption flags, and producer details locally.

Inspect PDF MediaBox and CropBox dimensions to catch mixed page sizes before print, merge, or upload.

PDF splitter — extract pages or split by range, every page becomes a PDF, 100% client-side with pdf-lib.

PDF merger — combine multiple PDFs into one, drag to reorder pages, 100% client-side with pdf-lib.