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Local-first tools No installation Support status shown

Tool family

Hex & Binary Tools

Inspect bytes, numbers, endian order, signatures, and low-level data.

Current catalog

Verified and in-development tools.

Planned and deprecated records are intentionally excluded from Tool Family archives. Each result still carries its own support and processing state.

Verified

Hex & Binary Tools

MS-DOS Date/Time Converter

Encode or decode the packed 16-bit MS-DOS date and time fields used by formats such as ZIP.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-09
Verified

Hex & Binary Tools

Windows FILETIME Converter

Convert between UTC timestamps and unsigned 64-bit Windows FILETIME ticks.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-09
Verified

Hex & Binary Tools

Checksum & Hash Calculator

Calculate CRC-32, explicit CRC-16 variants, Adler-32, MD5, SHA-1, SHA-256, or SHA-512 for UTF-8 text, hexadecimal bytes, or a selected local file.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-07
Verified

Hex & Binary Tools

CRC-32 Calculator

Calculate CRC-32/ISO-HDLC for text, hexadecimal bytes, or a local file entirely in the browser.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-07
Verified

Hex & Binary Tools

CRC-16 Calculator

Calculate one of four explicitly named CRC-16 variants instead of relying on an ambiguous generic CRC-16 label.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-07
Verified

Hex & Binary Tools

Adler-32 Calculator

Calculate the Adler-32 checksum for text, hexadecimal bytes, or a local file in the browser.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-07
Verified

Hex & Binary Tools

MD5 Calculator

Calculate an MD5 digest for text, hexadecimal bytes, or a selected local file entirely in the browser.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-07
Verified

Hex & Binary Tools

SHA-1 Calculator

Calculate SHA-1 for text, hexadecimal bytes, or a local file using the browser Web Crypto API.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-07
Verified

Hex & Binary Tools

SHA-256 Calculator

Calculate SHA-256 for text, hexadecimal bytes, or a local file using the browser Web Crypto API.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-07
Verified

Hex & Binary Tools

Escape Sequence Converter

Escape control characters into C-style sequences or decode validated newline, tab, slash, hex, and Unicode escape sequences.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-08
Verified

Hex & Binary Tools

xxHash32 Calculator

Compute xxHash32 with seed 0 according to the published xxHash algorithm specification.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-09
Verified

Hex & Binary Tools

Length-prefixed String Tool

Encode UTF-8 text with a 1-, 2-, or 4-byte length prefix or decode a payload whose declared byte length exactly matches the remaining bytes.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-08
Verified

Hex & Binary Tools

xxHash64 Calculator

Compute xxHash64 with seed 0 using exact 64-bit BigInt arithmetic.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-09
Verified

Hex & Binary Tools

CRC-64/ECMA Calculator

Calculate CRC-64/ECMA-182 for UTF-8 text using the standard ECMA polynomial and deterministic zero initialization.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-08
Verified

Hex & Binary Tools

FNV-1a 32-bit Calculator

Calculate the 32-bit FNV-1a hash of UTF-8 text using the standard offset basis and prime.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-08
Verified

Hex & Binary Tools

FNV-1a 64-bit Calculator

Calculate the 64-bit FNV-1a hash of UTF-8 text with exact BigInt 64-bit overflow behavior.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-08
Verified

Hex & Binary Tools

MurmurHash3 32-bit Calculator

Calculate MurmurHash3 x86 32-bit for UTF-8 text with an explicit unsigned 32-bit seed.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-08
Verified

Hex & Binary Tools

HMAC-SHA-256 Calculator

Calculate HMAC-SHA-256 for a UTF-8 message and UTF-8 key using the browser Web Crypto API.

Platform
Platform details on page
Processing
Local browser processing
Verified
2026-08-08

Compatibility first

Read the individual tool page before using a save file.

A tool family groups related jobs, but individual file formats and game versions can have different requirements. The individual tool page is the source of truth for compatibility, processing mode, limitations, and verification details.