Marvin's Toolbox.

Paste JSON to explore it as a collapsible, searchable tree, hide the fields you don't need, and see the structure it implies as a badge-annotated schema and a copyable TypeScript interface.

Shrink any image with as little quality loss as possible. Pick a WhatsApp, Instagram or Discord preset, or switch to Custom to hit a hard file size or a fixed quality, downscale with aspect-locked resolution sliders, and keep or strip EXIF metadata. Live preview, multiple images at once.

Inspect and edit the EXIF metadata of an image, then download it with your changes.

Copy the EXIF metadata from one photo onto another without changing the destination's pixels. That covers camera model, lens, focal length, exposure, GPS and more. Choose to replace all metadata or only fill in what the source provides.

Convert config and data between JSON, YAML, TOML, JSON5, INI, XML and .env. Type or paste on the left, pick the output format on the right, and copy the result. Includes a format button and a minify toggle.

Enter a salary as an hourly, monthly or yearly figure and the rest fill in for you, including what you actually earn per second, minute, hour and working day. Set your currency and adjust your hours per day, days per week and weeks per year.