Real tasks.
Working code.
Focused guides with the inputs, outputs and details you need to build.
Convert currencies using a dated reference rate
Convert an amount in Python and preserve the published rate date so a reference value is not mistaken for a live quote.
Start buildingBuild a country holiday calendar in Python
Request actual holiday dates for a year and country, select a region and check the response before using it.
Start buildingGenerate an invoice PDF from JSON
Send parties and line items, save a PDF and check the result before sending it to a customer.
Start buildingGenerate, decode and validate a QR code
Create a QR image, decode it back to text and check a structured payload before distributing it.
Start buildingConvert a PDF to Markdown in Python
Process PDF pages sequentially, preserve each completed result and assemble Markdown without repeating finished work.
Start buildingRemove a product photo background
Create a transparent PNG cutout, save the image correctly and inspect the edges before publishing.
Start buildingRender a Mermaid diagram with an API
Turn diagram source into SVG or PNG, handle syntax errors and embed the result in your documentation.
Start buildingTurn an audio clip into a transcript and subtitles
Upload authorized audio, save timed text and create subtitles while keeping formats and rounded-minute billing clear.
Start building