Development
Generate random strings that match a given regular expression pattern
regex-to-string-generatorUtilities
Calculate zodiac sign based on birth date and show date ranges for all zodiac signs
zodiac-date-calculatorMedia
Measure single-tone harmonic distortion per channel and download a ZIP report.
thd-analyzerText Processing
Encode, decode, visualize, and brute-force the Rail Fence transposition cipher. See the zigzag rail grid and try all rail counts to crack a ciphertext.
zigzag-railfence-textMath & Numbers
Table lookup of the unilateral Z-transform for 11 standard pairs, with parameter substitution, region of convergence, derivation note, and optional numeric X(z₀) evaluation.
z-transform-calculatorMedia
Enter a melodic contour as scale degrees (1-7 or do-re-mi) plus a target key, and get candidate diatonic chord progressions ranked by voice-leading smoothness, with roman-numeral analysis and an audio demo.
youtube-music-chord-finderFormat Conversion
Encode or decode bytes with ZeroMQ Z85, RFC 1924 Base85 or a validated custom alphabet in single or line-batch mode
z85-rfc1924-base85-stream-codecMath & Numbers
Solve Young's modulus (modulus of elasticity) in the linear-elastic region using E = σ/ε (Hooke's law). Three directions: modulus E = σ/ε, stress σ = E·ε, strain ε = σ/E. Pick the unknown, supply the other two positive values. Result in MPa with a GPa reading (e.g. steel ≈ 200 000 MPa).
youngs-modulus-calculatorText Processing
Repeat text N times with a chosen separator — inline, new line, or a numbered countdown. The quick tool for chat spam, dramatic build-ups, and social-media effect.
text-repeaterText Processing
Apply the "zalgo" corruption effect — stack random combining marks onto each character for a haunted/glitchy look. Adjustable intensity + optional seed.
zalgo-textFormat Conversion
Format, beautify and minify XML with configurable indent. Preserves comments and CDATA
xml-formatterFormat Conversion
Format and beautify YAML. Note: comments are lost (js-yaml limitation)
yaml-formatter