Real-time cost of meetings from attendees, hourly rates or salaries, and duration. Discover what it could buy instead.

Reverse percentages, percentage change over periods, successive changes, and percentage-of-a-percentage.

Instant conversions for length, area, volume, weight/mass, temperature, cooking, and digital data.

Calculate tip and split a bill by number of people with custom percentage.

Calculate regular pay, overtime at 1.5x, double time, and total earnings from hours worked.

25/5 focus timer with customizable work, short break, long break cycles. Auto-advance, pause, reset, and session counter. Runs locally with excellent defaults.

Generate strong random passwords with length, numbers, symbols, and easy copy. All client-side.

Compare prices across different package sizes. See true cost per ounce, per count, per liter, and find the best value instantly.

Add line items with quantity and price. Apply discounts, tax, and shipping. Live totals and professional summary for quick invoices or quotes.

Convert MPG ↔ L/100 km. Estimate trip fuel use and cost at your local price. Includes round-trip and passengers.

Convert between annual salary and hourly rate for any pay schedule: weekly, bi-weekly, semi-monthly, monthly. Live and precise.

Paste text or enter word count. See minutes to read at different speeds plus speak time.

Instant Base64 and URL-safe encode/decode with copy. Great for tokens, data URLs, quick debugging.

Enter hex colors and instantly see contrast ratio, WCAG AA/AAA pass/fail for text and UI.

Enter birthdate to see precise current age and days until next birthday.

Start/pause/reset with spacebar. Record laps, see splits and totals. Copy results.

Add classes with credits and grades. See live GPA, total credits, and what-if scenarios.

Paste a list, shuffle, pick N random items, or sort. Live, copy results. Great for teams, giveaways, decisions.

Run a timed agenda with sections and alerts.

Score options against weighted criteria.

Generate and check off a packing list by trip type.

Scale ingredient quantities for different servings.

Generate real, scannable QR codes with custom colors, size, and error correction. 100% in your browser.

Pretty print and validate JSON.

Calculate network, broadcast, hosts for CIDR.

Test regex against sample text with matches.

Combine multiple PDFs into one file, reorder pages, all in your browser. Files never leave your device.

Extract page ranges or split every page of a PDF into separate files. 100% local, no uploads.

Rotate all pages or a page range 90/180/270 degrees and download the fixed PDF. No uploads.

Shrink JPG, PNG, and WebP file sizes with a quality slider and live before/after preview. In-browser.

Resize images by exact pixels, percentage, or presets with high-quality downscaling. No uploads.

See and strip EXIF data — GPS location, camera model, more — from photos before sharing. 100% local.

Convert images to Base64 data URIs with CSS and HTML snippets, or decode Base64 back to an image.

Write Markdown with live GFM preview, autosaved drafts, and export to .md or HTML.

Compare two texts line by line with word-level highlighting, ignore-case options, and change stats.

Live word, character, sentence, and paragraph counts plus reading time and keyword density.

Convert text to UPPER, lower, Title, camelCase, snake_case, kebab-case, slugs, and more with one click.

Convert CSV to JSON and back with proper quoting, delimiter detection, headers, and type inference.

Decode JWT headers and payloads with human-readable expiry annotations. Decoding only — nothing leaves your browser.

Convert unix timestamps to local, UTC, ISO 8601, and relative time — and dates back to unix seconds/ms.

Generate cryptographically random v4 UUIDs in bulk with uppercase and no-hyphen options.

Turn any base color into a Tailwind-style 50-900 shade scale with harmony swatches and CSS/JSON exports.

Build linear, radial, and conic gradients with live preview and copy-ready CSS or Tailwind classes.

Simplify ratios, solve missing dimensions, match common formats, and compute letterbox sizes.

Read QR codes from any image — upload or paste a screenshot — with parsed Wi-Fi, email, and phone fields.

Fix out-of-sync SRT subtitles: shift, two-point rescale, or framerate-convert timestamps and download.

Compute MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC-32 for text or files, all in your browser.

Local-first habit tracker with a 13-week grid, streaks, and JSON export. Your data stays on your device.

Generate placeholder paragraphs, sentences, or words with optional HTML wrapping and copy button.

Translate cron expressions to plain English with the next 5 run times and field-level validation.

Split shared expenses, see who owes whom, and get a minimal settle-up plan. Saves locally, no accounts.

Encode/decode URLs and components, edit query parameters live, and convert HTML entities.

Drift-corrected countdown with progress ring, tab-title updates, end-of-timer chime, and repeat mode.