Media
Assemble a short podcast trailer from intro music, up to 5 highlight clips, a music bed under the clips, and a loudness target.
audio-podcast-trailer-builderMedia
Extract the background ambience/room tone from a fragment and generate a seamless loop of any target length.
audio-ambience-loop-generatorMedia
Detect breaths in speech and naturally crossfade to reduce, remove, or keep them.
audio-breath-control-editorMedia
Combine a timestamped transcript with the audio to mark filler words (um, uh, 嗯, 那个…) and optionally mute or remove them.
audio-filler-word-removal-mapFinance
Calculate the true Annual Percentage Rate (APR) of a loan when upfront fees are involved. The nominal interest rate sets the monthly payment, but fees reduce the net cash received, raising the effective APR. Uses Newton's method to solve the annuity present-value equation. Shows APR, nominal rate, monthly payment, and the APR premium.
apr-calculatorMedia
Compare integrated LUFS, true peak, LRA, stereo/mono, bitrate and sample rate against Apple Podcasts, Spotify, YouTube, ACX and broadcast targets.
audio-podcast-loudness-compliance-reportMedia
Apply a configurable podcast mastering chain: high-pass, denoise, de-ess, compression, EQ tilt, LUFS normalization, and true-peak limiting.
audio-podcast-mastering-chainFinance
Compare avalanche (highest APR first) vs snowball (lowest balance first) strategies for paying off multiple credit cards. Enter cards as 'name, balance, APR%, minPayment%' per line plus an extra monthly payment. Shows payoff time, total interest, savings vs minimum-only, and balance decline curves.
credit-card-payoffFinance
Convert between hourly, monthly, and annual salary. Enter any one figure and get the other two, with customizable hours per week, weeks per year, and overtime multiplier. Shows paycheck estimates for weekly, biweekly, semimonthly, and monthly pay periods.
salary-converterFinance
Two-phase retirement model: an accumulation phase (current age to retirement, with monthly contributions and compound growth) and a withdrawal phase (retirement to life expectancy, nest egg grows at a conservative rate while inflation-adjusted withdrawals are taken out). Reports whether the nest egg lasts, real purchasing power, and any shortfall.
retirement-calculatorFinance
Solve for the monthly contribution needed to reach a savings goal (with interest and compounding), or for the time required to reach the goal with a fixed monthly deposit. Optional inflation adjustment. Uses monthly compounding rollup.
savings-calculatorDevelopment
Generate theme.extend.colors for tailwind.config.ts from HEX colors, with WCAG contrast levels and optional dark mode.
tailwind-color-palette-sync