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Browse the tool catalog | Page 47

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 47.

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UI Screenshot Structure Review and Development Handoff
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Geography

Tide Calculator

Estimate local tide height and upcoming high/low tides from a known reference high tide.

Data Visualization

Treemap Generator

Render hierarchical data as a squarified treemap where area encodes each item's share

Geography

Timezone Lookup by Coordinates

Find the IANA timezone for any latitude / longitude: returns the timezone name (e.g. Asia/Shanghai), the current UTC offset, whether daylight saving time is active, the local wall-clock time, and the nearest reference cities. Fully offline — uses a built-in city/timezone reference database with nearest-reference matching.

Text Processing

Title Case Converter

Convert text to editorial-quality Title Case using AP, Chicago, or Wikipedia style rules. Lowercases function words, capitalizes first/last words and after colons, handles hyphenated compounds.

Calculator

Tile Coverage Estimator

Estimate how many tiles you need to cover a room, including layout-aware waste (straight, 45° diagonal, herringbone, basketweave), boxes to buy, grout volume and weight, and an optional cost total. Enter room and tile dimensions plus joint width to get a ready-to-order material list.

Text Processing

Tiny Text

Shrink text into tiny Unicode forms — superscript (ᴴᵉˡˡᵒ) or subscript (ₕₑₗₗₒ). Plain Unicode text, no font needed.

Calculator

Tire Size & Gear Ratio Calculator

Enter a tire size (285/70R17), differential/final-drive ratio, and transmission gear ratios to compute the true overall tire diameter, circumference, revolutions per mile/km, an RPM × gear speed table, effective final drive after a tire change, and speedometer error. Metric or imperial units, with optional before/after tire comparison.

Security

TOTP / HOTP Offline Code Generator

Generate RFC 6238 TOTP (time-based, 6/8 digits, 30/60s step) and RFC 4226 HOTP (counter-based) one-time passwords from a base32 shared secret, fully offline with HMAC-SHA1/256/512, plus an otpauth:// URI for importing into Google Authenticator / Authy

Format Conversion

TOML Formatter

Format and beautify TOML. Note: comments are lost and key order may change (@iarna/toml limitation)

Math & Numbers

TiB to TB

Convert tebibytes to terabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates

Media

Video Background Remove (Chroma Key)

Remove solid color backgrounds from video using chroma key (green screen, blue screen, etc.)

Media

Video Color Grading

Professional color grading for video with brightness, contrast, saturation, and gamma adjustments