File Tools11 live toolsClient-side first

File Tools tools

Inspect, split, merge, archive, sanitize, encode, and checksum files — all locally without server uploads.

Browse the live tools below to compare workflows, then jump into related utilities through the category hub without losing context.

ZIP File Compressor

Bundle multiple files into a downloadable ZIP archive locally — no server upload, fully private.

File Merger

Merge multiple text files into one combined output with separators — concatenate files in seconds.

File Splitter

Split text files by line count or approximate chunk size — prepare large files for processing.

MIME Type Detector

Inspect uploaded files for MIME type, extension, and file signature hints — identify unknown files instantly.

Checksum Calculator

Calculate CRC32, MD5, and SHA-256 checksums for uploaded files — verify file integrity instantly.

Filename Sanitizer

Normalize messy file names for safer downloads, uploads, and archives — remove illegal characters instantly.

Base64 File Encoder

Encode uploaded files to Base64 strings in the browser — convert any file to an inline data URI.

Line Ending Converter

Convert text between LF (Unix) and CRLF (Windows) line endings — fix cross-platform editor issues.

PDF Editor

Edit, annotate, and fill PDF files in the browser — no Adobe Acrobat needed, using AI-powered workflow.

PDF Annotator

Open a PDF editing workflow for quick markup, notes, and in-browser annotations — free PDF annotator.

PDF Metadata Privacy Checker

Inspect PDF author, title, subject, timestamps, and hidden metadata before sharing files. It helps teams remove accidental identifiers from proposals, resumes, and reports without sending documents to a server.