AI Tools
Transcribe speech from audio (wav/mp3/m4a/flac/ogg/webm/aac) to text, SRT, VTT or JSON using the grok-stt AI model. Up to 10 minutes.
audio-to-text-transcriberAI Tools
AI content-moderation classifier using NSFWJS to flag uploaded images as safe or potentially inappropriate. Built for moderation and compliance review of your own files — it analyzes uploads only and is not an image search or discovery tool. Supports JPEG/PNG/WEBP/GIF.
nsfw-image-detectorMath & Numbers
Plot a normal-distribution bell curve as SVG with z-score markers, interval or tail-probability shading, and 68/95/99.7 standard-deviation bands.
normal-distribution-plotterFormat Conversion
Convert a Markdown pipe table to CSV, JSON rows or an inferred JSON Schema with alignment and null diagnostics
markdown-table-to-csv-json-schemaText Processing
Wrap whole text, lines, or sentences with typographic quotes, nested quote pairs, and language-aware punctuation.
quote-wrapperText 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-textMedia
Design and render musical fade-ins and fade-outs: bar-based lengths at your BPM or lengths auto-derived from detected silence, fades placed against the real music span, logarithmic curves, optional silence trimming.
audio-automatic-fade-designerMedia
Three-band stereo imaging: mono the bass, keep the mids focused and widen the highs — exact mid/side matrices behind 4th-order Linkwitz-Riley crossovers, built from FFmpeg.
audio-multiband-stereo-widthMedia
Blend the dry signal with a heavily compressed, makeup-gained copy — upward compression that lifts quiet detail while the dry path keeps its punch, built from FFmpeg.
audio-parallel-compressionDevelopment
Convert an N-bit value to binary, Gray, one-hot and thermometer codes with a counting truth table, Hamming-distance chart and Verilog/VHDL encoder stubs.
gray-code-and-thermometer-bcd-encoder-visualizerDevelopment
Drop any game save file — Minecraft NBT, Unreal Engine GVAS, Palworld containers, JSON/XML/INI/Lua text saves, SQLite profiles — and get the detected format, engine versions, key progress fields and a bounded structural tree.
game-save-viewerData Processing
Paste one or two columns of numbers and get the complete descriptive suite — mean/median/mode, sample and population variance, type-7 quartiles and percentiles, MAD, adjusted skewness and kurtosis, Tukey outliers — plus covariance, Pearson r, tie-corrected Spearman rho and least-squares regression for two columns.
general-statistics-calculator