Tool guides
This page summarizes what each tool is for and one practical situation to check before using the result elsewhere.
Create QR codes for links, text, Wi-Fi, contact data, events, and batch CSV input.
Example: Create a QR code for a restaurant menu, poster, or event handout.
Check: Styled QR codes can fail if contrast is low or logo coverage is too high.
Convert text case, clean formatting, and prepare short text snippets.
Example: Fix all-caps titles copied from a CRM export.
Check: Title-case output may need manual review for acronyms and brand names.
Add or subtract time, compare dates, and build simple timelines.
Example: Calculate a support deadline after a fixed number of business days.
Check: Timezone-sensitive results show the selected source and target timezone.
Convert common units for length, weight, temperature, area, power, and time.
Example: Convert metric and imperial measurements for a supplier note.
Check: Round only at the final step when precision matters.
Convert HEX, RGB, and HSL colors, check contrast, and create simple palettes.
Example: Check button text contrast before shipping a landing page.
Check: Contrast results show the ratio and WCAG pass/fail state.
Split and merge PDF files for page extraction, document packets, and sharing cleanup.
Example: Extract only the signed pages from a long contract packet.
Check: PDF files are uploaded for processing and temporary downloads expire.
Track coffee or tea breaks and run a simple brew countdown.
Example: Time a four-minute tea steep while writing notes.
Check: Browser timers can be delayed when a tab is in the background.
Generate UUID values for APIs, events, migrations, and test data.
Example: Create IDs for seed data before a migration test.
Check: UUIDs reduce collision risk but do not prove identity or authorization.
Generate hashes and checksums for text or files.
Example: Verify a downloaded installer against a published SHA-256 value.
Check: Hashing is not encryption.
Generate passwords and passphrases with configurable length and character rules.
Example: Create a temporary admin password before rotating it in a vault.
Check: Generated values are not sent to the server by this tool.
Convert CSV to JSON and JSON to CSV with delimiter and flattening controls.
Example: Convert a partner CSV export into JSON for an API test.
Check: Malformed CSV with embedded line breaks needs correctly quoted values.
Resize, compress, convert, and remove metadata from images.
Example: Shrink screenshots before attaching them to a support ticket.
Check: Compression can reduce visual quality.