Free Online Tools
184+ free online tools for PDF, images, SEO, developers, color, and productivity. Fast, browser-based, and private — no signup, no installs, no limits. Search above or browse by collection below.
Total tools18410.7K total uses
Categories11Active categories
Most usedJSON Formatter4.1K uses
Recently addedElectron Configuration GeneratorNewest tool
Restaurant Profit Calculator
Calculate restaurant net profit, food and labor costs, prime cost ratio, and profit margins from sales and operating expenses.
Used 0 times•Updated never
Time Calculator
Calculate time differences and add or subtract hours, minutes, and seconds from any clock time.
Used 0 times•Updated never
Scientific Calculator
Perform basic and scientific calculations with trigonometry, logarithms, powers, and degree or radian mode.
Used 0 times•Updated never
Tip Calculator
Calculate tip amount, total bill, and fair split per person with quick percentage presets.
Used 0 times•Updated never
Invoice Generator
Create professional invoices with line items, tax, and totals — preview, print, or download as PDF.
Used 0 times•Updated never
Receipt Generator
Create printable sales receipts with items, tax, payment details — preview, print, or download as PDF.
Used 0 times•Updated never
Quotation Generator
Create professional price quotations with line items, tax, and validity dates — preview, print, or download as PDF.
Used 0 times•Updated never
SKU Generator
Generate product SKU codes from brand, category, product, color, size, and variant fields with custom separators and sequences.
Used 0 times•Updated never
Unsloth Dataset Builder
Unsloth dataset builder free — create fine-tuning JSONL for Alpaca, chat messages, tool calls, or raw text. Import, validate, split train/eval, export.
Used 0 times•Updated never
Molar Mass Calculator
Molar mass calculator free — parse chemical formulas like H2O or Ca(OH)2 and get g/mol with an element breakdown. Browser-based, instant, no signup.
Used 0 times•Updated never
Mole Calculator
Mole calculator free — convert between grams, moles, and particles using molar mass. Instant chemistry stoichiometry in your browser, no signup.
Used 0 times•Updated never
Chemical Equation Balancer
Chemical equation balancer free — balance reactions like H2 + O2 → H2O with correct coefficients. Instant stoichiometry in your browser, no signup.
Used 0 times•Updated never