Free Online Tools for Public Use

Free utility tools collection and very useful for basic needs. These tools are developed and maintained for public use for free. You are free to collaborate to add more tools to this platform.. Are you missing any needy tool? Please request below.

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Tools 68
Reactive Energy Unit Converter
by free-tools.io Executed 99 times

Simple tool convert between reactive energy units (VARh, mVARh, kVARh, MVARh, GVARh)

converter energy reactive reactive-energy varh unit-converter
Reactive Power Unit Converter
by free-tools.io Executed 110 times

Simple tool convert between reactive power units (VAR, mVAR, kVAR, MVAR, GVAR)

converter var reactive-power power unit-converter
SHA1 Hash Generator
by free-tools.io Executed 2,773 times

Simple tool sha1 strings for the text content online. The SHA hash functions were designed by the National Security Agency (NSA). SHA-1 is the most established of the existing SHA hash functions, and it's used in a variety of security applications and protocols. Though, SHA-1's collision resistance has been weakening as new attacks are discovered or improved.

sha1 crypto cryptography security hash hashing generator hash-generator
SHA256 (SHA2) Hash Generator
by free-tools.io Executed 6,504 times

Simple tool sha256 (sha2) strings for the text content online. SHA-256 is one of the four variants in the SHA-2 set. It isn't as widely used as SHA-1, though it appears to provide much better security.

sha256 sha2 hash hashing generator hash-generator
SHA3 Hash Generator
by free-tools.io Executed 1,184 times

Simple tool sha3 (512, 384, 256, 224) strings for the text content online. SHA-3 is the winner of a five-year competition to select a new cryptographic hash algorithm where 64 competing designs were evaluated. Each of the SHA-3 functions is based on an instance of the Keccak algorithm, which NIST selected as the winner of the SHA-3 competition, but those SHA-3 functions won't produce hashes identical to Keccak.

sha3 Keccak crypto cryptography security crypto cryptography security hash hashing generator hash-generator
SHA512 (SHA2) Hash Generator
by free-tools.io Executed 3,446 times

Simple tool sha512 (sha2) strings for the text content online. SHA-512 is largely identical to SHA-256 but operates on 64-bit words rather than 32.

sha512 crypto cryptography security sha2 hash hashing generator hash-generator
SSL Generator (Self Signed)
by free-tools.io Executed 23,265 times

Generate quickly self-signed SSL certificates online with one click.

security ssl self-signed certificate
Speed Unit Converter
by free-tools.io Executed 138 times

Simple tool convert between speed units (m/s, km/h, m/h, knot, ft/s)

converter meter kilo-meter speed feet mile metre unit-converter
Temperature Unit Converter
by free-tools.io Executed 130 times

Simple tool convert between temperature units (C, F, K, R)

converter celcius fahrenheit kelvin temperature unit-converter
Time Unit Converter
by free-tools.io Executed 119 times

Simple tool convert between time units (ns, mu, ms, s, min, h, d, week, month, year)

converter milli-second nano-second time second minute hour day week month year
Total Daily Energy Expenditure Calculator
by free-tools.io Executed 4 times

Quick online Total Daily Energy Expenditure Calculator calculator. An estimation of how many calories you burn per day when exercise is taken into account.

fitness health calculate calorie calculator energy calorie-calculator
Triple DES Encrypt / Decrypt
by free-tools.io Executed 1,812 times

Simple tool to encrypt and decrypt using Triple DES.Triple DES applies DES three times to each block to increase the key size. The algorithm is believed to be secure in this form.

des triple-des cipher crypto cryptography security hash encrypt encryption decrypt decryption crypto cryptography security hashing generator hash-generator
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