File Tools
Comprehensive suite of file and storage calculators to help you manage files, calculate download times, storage needs, bandwidth requirements, and more.
File Size Converter
Convert file sizes between different units including bytes, KB, MB, GB, TB, and binary equivalents (KiB, MiB, GiB). Perfect for understanding storage measurements.
Convert File SizeDownload Time Calculator
Calculate how long it will take to download a file based on its size and your connection speed. Compare times across different connection types like 3G, 4G, 5G, and fiber.
Calculate Download TimeStorage Calculator
Calculate storage requirements for photos, videos, music, documents, and apps. Find out how many files fit in different storage capacities.
Calculate StorageFile Retention Estimator
Forecast rolling storage needs from daily file volume, average size, retention windows, and replica counts.
Estimate RetentionData Transfer Calculator
Calculate website data transfer and bandwidth requirements based on monthly visitors and page size. Compare hosting costs across different providers.
Calculate Data TransferFile Hash Information
Learn about file hash algorithms like MD5, SHA-1, SHA-256, and their use in verifying file integrity, checksums, and data verification.
Learn About HashesMIME Type Lookup
Look up MIME types for file extensions. Essential for web development, file uploads, and HTTP Content-Type headers. Includes common file types across all categories.
Lookup MIME TypeArchive Ratio Estimator
Estimate compression ratio and storage savings between original and archived files before selecting ZIP, TAR.GZ, or 7Z formats.
Estimate RatioFile Signature Checker
Identify likely file types from magic-number signatures to detect extension mismatches and harden upload validation.
Check SignatureFile Type Policy Builder
Generate file upload allowlists, regex rules, and backend/frontend validation snippets by file category.
Build PolicyFormat Conversion Matrix
Compare source-to-target conversion options based on performance, compatibility, editability, and storage goals.
View MatrixChecksum Manifest Builder
Generate sha256sum and md5sum compatible manifest files from file/checksum lists for release verification.
Build ManifestFilename Policy Enforcer
Normalize filenames to match case, length, and character policy rules before upload or migration.
Enforce PolicyCSV Dialect Detector
Detect delimiter, quote character, and header likelihood to reduce CSV import errors from external sources.
Detect DialectArchive Integrity Command Builder
Generate archive test commands and CI snippets for ZIP, TAR, GZIP, 7Z, and RAR verification.
Build CommandsMIME Allowlist Diff Checker
Compare current and proposed extension allowlists and flag risky executable file-type additions.
Compare AllowlistsMIME Header Validator
Validate extension, declared MIME, and response Content-Type alignment to catch upload policy drift.
Validate MIME HeadersUpload Size Policy Calculator
Set reliable upload limits from bandwidth, timeout budget, and concurrent traffic assumptions.
Calculate PolicyArchive Format Advisor
Pick ZIP, TAR.GZ, or 7Z based on compatibility, compression goals, and encryption requirements.
Get RecommendationPDF OCR Readiness Checker
Estimate OCR complexity for scanned PDFs using DPI, language count, and table density signals.
Check OCR ReadinessImage Format Delivery Advisor
Choose the best web image format and fallback based on transparency, animation, and browser constraints.
Get Format AdviceXLSX Sheet Size Estimator
Estimate Excel workbook size and risk from row count, column width, formulas, and number of sheets.
Estimate XLSX SizeProtobuf Payload Size Estimator
Project protobuf message and batch payload sizes for API and queue transport planning.
Estimate Payload