3 subcategories · 18 calculators
Technology
Free technology calculators for networking, password generation, hash tools, and developer workflows.
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Networking
Networking tools for IP ranges, masks, and subnet planning.
1 subcategories
Browse networkingSecurity
Password, hash, and security helper tools.
2 subcategories
Browse securityIdentifiers
UUID, ObjectId, sortable ID, and random ID generators.
10 calculators
Browse identifiersPopular tools
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Technology / Security / Hash & Checksum Tools
Checksum Calculator
Calculate CRC32, CRC32C, and Adler-32 checksums for text or files, compare known values, and switch between hex and decimal output.
Technology / Identifiers
CUID2 Generator
Generate CUID2 identifiers in batch with default, slug, or custom lengths, optional fingerprinting, and built-in validation.
Technology / Security / Hash & Checksum Tools
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes for text or files, compare known digests, and switch between hex and Base64 output.
Technology / Networking / IP Subnetting
IP Subnet Calculator
Break down any IPv4 address and prefix into network address, broadcast, host range, subnet mask, wildcard mask, and usable host count.
Technology / Identifiers
KSUID Generator
Generate KSUIDs in batch with sortable base62 output, custom timestamp seeding, and built-in validation with timestamp decoding.
Technology / Security / Hash & Checksum Tools
MD5 Generator
Generate MD5 digests for text or files, compare known values, and switch between hex and Base64 output with clear legacy guidance.