Tint & Shade Generator - Online Lighter & Darker Colors
Generate tints (add white) and shades (add black) for any base hex color. Copy values for design systems. Instant local generation.
UD5 Toolkit
Pick a base color and explore complementary, triadic, analogous & more harmonies instantly.
Generate tints (add white) and shades (add black) for any base hex color. Copy values for design systems. Instant local generation.
Select a heading font and see a set of well‑paired body fonts. Live preview with your own text. Copy the import code.
Select parent colors and genotypes to predict possible offspring coat colors. Based on simple Mendelian genetics for common breeds.
Start with a word and find synonyms, then synonyms of synonyms. Build a chain and explore language. Local thesaurus.
Enter products with different prices and weights/volumes. The tool ranks them by best value per unit. Save money effortlessly.
Enter notes or chords on a virtual fretboard and generate ASCII tablature. Quick way to share musical ideas.
Paste a test card number to verify Luhn algorithm, identify issuer (Visa, MC), and check length. No real data.
Generate random Scattergories‑style lists with a random letter and 12 categories. Great for online game night.
Quickly test SQL JOIN syntax (INNER, LEFT, RIGHT, FULL) with a sample database schema. Check logic and see conceptual result set without a real DB. Local only.
Enter any phrase and instantly see if it's a palindrome, ignoring spaces and punctuation. Fun for word nerds.
Two players type the same text on the same keyboard (WASD vs Arrow zones) and race to finish first. Fun classroom game.
Enter adjusted gross score, course rating, and slope to calculate the round's handicap differential. Track your index.
Convert any text into its binary representation (8-bit per character). See the raw bits. Suitable for learning computer fundamentals. All local.
Check if a word or phrase is a palindrome (reads same forward and backward). Live validation and fun facts.
Use the new `commandfor` and `command` attributes to invoke actions on other elements without JavaScript. See the spec live.
Paste tab‑separated or CSV data and instantly get a beautifully aligned Markdown table. Essential for documentation.
Generate a camping checklist based on trip style (car, backpacking, glamping). Check off items. Fully local.
Paste HTML snippet and see calculated tab order. Identify missing focusable elements. A11y helper.
Build 'I feel... when... because...' statements interactively. Improve communication in relationships. Local only.
Enter your weight, height, boot sole length, and skier type to see the recommended DIN release setting.
Paste HTML and detect unclosed tags, invalid nesting, and duplicate IDs. Lightweight client‑side validation.
Enter recent scores, course rating, and slope to estimate a golf handicap index. Simple formula for unofficial tracking. Local only.
Paste your SQL query and check for basic syntax errors. Highlights missing commas, wrong keywords. Local analysis.
Turn any sentence into mocking SpongeBob‑style text. Choose intensity. Copy and paste into chats. Pure client.
Validate YAML syntax with line‑by‑line error messages. Also format messy YAML into clean, indented output. All in your browser.
Measure your handle circumference and preferred overlap to see how long your overgrip tape needs to be.
Fill in your vet's number, poison control, and pet details. Print a card for your wallet or fridge.
Instantly generate random UUIDs (version 4) for use as unique identifiers in software development. No registration, completely free and private.
Take a perfectly fine phrase and insert realistic-looking typos. For pranks or testing spell‑checkers.
Generate a comprehensive first aid kit list for home, car, or hiking. Check off what you have.