A workshop of small web tools
Small, sharp tools that do one thing well.
No accounts. No uploads. Every tool runs entirely in your browser — open one, use it, close the tab.
CSV Cleaner
Fix messy CSV and convert it
Paste in messy CSV, repair delimiters and stray whitespace, remove duplicate rows, and export clean JSON or a Markdown table.
Open →A2File Type Checker
Is this file really what it says?
Drop a file and read its magic bytes to find its true type, then compare that against what the extension claims. Nothing leaves your browser.
Open →B1Timezone Overlap
When can everyone actually meet?
Enter each person’s working hours across their own timezone and see the bands of time when the whole group is free at once.
Open →B2Contrast Checker
Legible text over images and gradients
Check whether text stays readable over a photo or a gradient, not just flat colours — sampling the hardest points and reporting WCAG contrast.
Open →C1Plain Text Diff
See what changed, in plain language
Compare two versions of any text and see exactly what was added, removed, or changed — built for contracts and drafts, not code.
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