Elysia Tools
Navigation
Tools
Image, audio, and video processing, conversion, and optimization tools
Calculators, numerics, date logic, statistics, and finance tools
Color, layout, graphics, visual styling, and design helper tools
Writing, cleanup, formatting, extraction, and text analysis tools
Format, file, archive, unit, and encoding conversion tools
Developer utilities, networking, web debugging, and automation helpers
Media
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.
Decode PQ or HLG AVIF, convert BT.2020 to sRGB, and tone map highlights into a viewable SDR PNG.
Decode HEIC photos to compatible JPEG with quality, chroma subsampling, and background controls.
Decode HEIC photos to verified 24/32-bit or high-precision 48/64-bit PNG files.
Inspect real sample depth, stored pixel depth, channels, palette, alpha, color space, ICC, and HDR metadata.
Convert images to exact monochrome, indexed, grayscale, RGB, or RGBA PNG bit depths with verified output.
Edit subtitle timing, shift cues, repair overlaps, calibrate CPS, wrap long lines, and export SRT, VTT, ASS, or TTML.
Convert a selected TIFF page to verified 16-bit-per-channel grayscale, RGB, or RGBA PNG.
Remove or blur watermarks and logos from videos by specifying the watermark area
Reduce broadband noise with a spectral filter chain
Convert up to 20 uploaded images, or images inside a ZIP archive, into WebP files packaged as a ZIP
Combine video with external audio using copy mode.