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File & Data Tools

30 tools

Browser utilities for processing files, analyzing checksums, inspecting binary data, and converting archives.

All File & Data Tools File Checksums & Integrity (12) Zip & Archive Inspection (4) CSV & Delimited Data (10) File Diff & Duplicate Detection (4)
File Checksums & Integrity Processed in your browser
Binary & Hexadecimal Byte Stream Converter
Convert raw binary bit streams into hexadecimal bytes, ASCII characters, and decimal values with spacing and grouping.
File Checksums & Integrity Processed in your browser
Data URI to File Blob & Asset Downloader
Decode Base64 Data URIs into downloadable binary files with automatic MIME-type detection and file extension mapping.
File Checksums & Integrity Processed in your browser
File Hash & Checksum Multi-Algorithm Calc
Compute SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic checksums for local files directly in-browser using Web Cryptography API.
File Checksums & Integrity Processed in your browser
JSON to YAML Clean Converter
Convert JSON structured objects into clean, indented YAML data structures with syntax validation and clipboard copy.
File Checksums & Integrity Processed in your browser
YAML to JSON Data Structure Converter
Parse YAML documents into validated, beautified JSON with customizable indentation and error detection.
Zip & Archive Inspection Processed in your browser
Tarball & Archive Header Structure Inspector
Client-side binary parser for POSIX tar archive file headers, listing member files and sizes without disk extraction.
CSV & Delimited Data Processed in your browser
CSV Row Filter & Column Sort Utility
Filter, sort, and slice CSV datasets in-browser by column criteria with instant filtered CSV download.
CSV & Delimited Data Processed in your browser
CSV to TSV & Custom Delimiter Converter
Convert comma-separated datasets into tab-separated, pipe-separated, or semicolon-separated values.
CSV & Delimited Data Processed in your browser
Markdown Table to CSV & Delimited Converter
Extract tabular data from GitHub-flavored Markdown tables and convert to CSV or tab-delimited formats.
File Diff & Duplicate Detection Processed in your browser
Text File Whitespace & Empty Line Trimmer
Clean and normalize text files by removing trailing whitespace, consecutive blank lines, and carriage returns.
File Checksums & Integrity Processed in your browser
File Multipart Chunk Splitter & Byte Offset Calculator
Calculate multipart upload chunk counts, byte ranges, HTTP Content-Range headers, and S3 multipart part sizes.
File Checksums & Integrity Processed in your browser
File Magic Bytes Signature & MIME Type Inspector
Inspect file binary headers and magic number bytes to accurately detect genuine file format and MIME type regardless of extension.
File Checksums & Integrity Processed in your browser
JSON Schema Validator & Draft-07 Structure Checker
Validate JSON data structures against JSON Schema definitions with error path pinpointing, type checks, and required property validation.
Zip & Archive Inspection Processed in your browser
In-Browser Gzip & Deflate Compression Ratio Simulator
Test text, JSON, and HTML payloads with native browser CompressionStream API to view exact compressed byte savings and compression ratios.
File Checksums & Integrity Processed in your browser
Base64 File Encoder & Decoder Lab
Encode local images, audio, documents into Base64 Data URIs or decode Base64 strings into downloadable files.
Zip & Archive Inspection Processed in your browser
Parquet Big Data Metadata & Schema Inspector
Inspect Apache Parquet columnar file magic headers, row group statistics, data schemas, and compression formats in-browser.
File Checksums & Integrity Processed in your browser
Binary Hex Dump Inspector & Viewer
Inspect raw file bytes in traditional 16-byte hex format with byte offsets and printable ASCII characters.
CSV & Delimited Data Processed in your browser
CSV Header Column Reorder & Cleaner Tool
Reorder, rename, delete, and sanitize CSV table columns with interactive drag-and-drop column positioning and CSV export.
File Checksums & Integrity Processed in your browser
File Checksum & Integrity Verifier
Compute SHA-256, SHA-512, SHA-384, and SHA-1 cryptographic hashes of local files using the client-side Web Crypto API.
CSV & Delimited Data Processed in your browser
CSV to SQL INSERT Statements Generator
Convert CSV table data into SQL INSERT INTO queries with batch chunking, string escaping, and database dialect presets.
File Checksums & Integrity Processed in your browser
File Size & Byte Converter Calculator
Convert file storage capacities between Bytes, KB/KiB, MB/MiB, GB/GiB, and TB in Decimal (1000) and Binary (1024) systems.
CSV & Delimited Data Processed in your browser
NDJSON & JSON Lines (JSONL) Converter
Convert between Newline Delimited JSON (NDJSON / JSONL) and standard formatted JSON arrays with syntax validation.
Zip & Archive Inspection Processed in your browser
ZIP Archive Metadata Inspector
Inspect contents, file listings, compression ratios, CRC-32 checksums, and timestamps of ZIP archives locally.
CSV & Delimited Data Processed in your browser
TSV (Tab-Separated) to JSON Records Converter
Convert tab-delimited values (TSV / copy-paste from Excel & Google Sheets) into clean JSON objects with automatic type detection.
CSV & Delimited Data Processed in your browser
CSV Column Extractor & Filter Tool
Extract specific columns from large CSV files and filter rows matching custom search queries or criteria.
File Diff & Duplicate Detection Processed in your browser
Text & Code Line Number Prefixer and Formatter
Prepend formatted line numbers to text, source code, and log files with customizable zero padding, prefixes, and blank line filters.
CSV & Delimited Data Processed in your browser
CSV Delimiter & Separator Converter
Convert structured tabular data between Comma (,), Semicolon (;), Tab (TSV), Pipe (|), and Colon delimiters.
CSV & Delimited Data Processed in your browser
CSV to Markdown Table Generator
Transform CSV or spreadsheet tabular data into GitHub-Flavored Markdown tables with column alignment.
File Diff & Duplicate Detection Processed in your browser
Text Diff Side-by-Side Comparator
Compare two text snippets side-by-side with line-by-line visual difference highlighting for additions and deletions.
File Diff & Duplicate Detection Processed in your browser
Text Duplicate Lines Cleaner & Deduper
Remove duplicate lines from text lists with case-sensitivity options, whitespace trimming, and sorting filters.

🛡️ Client-Side Execution & Privacy Architecture

Every tool executes under a strict Local-Only (P0) Privacy Architecture. Rather than transmitting your payloads, files, code, or sensitive data to remote cloud servers, all processing happens locally inside your web browser.

🔒 Zero Data Logging
No tracking or database recording of your inputs, keys, or source documents.
⚡ Instant In-Browser Processing
Zero network latency or server queue delays. Output is rendered instantaneously.
🌐 Offline Capable
Continue working even during intermittent internet or offline environments.

Frequently Asked Questions

Are all File & Data Tools tools free?

Yes, 100% free with unlimited daily usage. There are no paywalls, subscriptions, or login requirements.

Is my data uploaded or stored anywhere?

Never. All operations happen in-memory inside your browser session. Once you refresh or close your browser tab, memory is cleared immediately.

Can I use these utilities on mobile or tablet?

Yes, all utilities are fully responsive and optimized for touch devices and small viewports without loss of functionality.

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