Free online tools that just work
Small, fast utilities for everyday tasks — counting, calculating, converting, creating. Everything runs in your browser: private, free and ready when you are. One Pro subscription unlocks every tool's full feature set and removes all ads.
Tools
Word counter
WritingWords, characters, sentences, reading time and platform limits — live as you type.
Free · Pro: readability scores: Flesch reading ease and grade level
Open toolInvoice generator
BusinessProfessional A4 and US Letter PDF invoices. Your data never leaves your device.
Free · Pro: no credit line on your invoices
Open toolAI token cost calculator
DeveloperEstimate LLM API costs for GPT, Claude, Gemini and more — per call and per month.
Free · Pro: compare every model side by side for your exact usage
Open toolLoan payment calculator
FinanceMonthly payment, total interest and payoff date for any loan — mortgage, car or personal.
Free · Pro: full month-by-month amortization schedule
Open toolImage compressor
FilesShrink JPEG, PNG and WebP images right in your browser — nothing is uploaded.
Free · Pro: unlimited images per batch
Open toolCompound interest calculator
FinanceProject savings growth with monthly contributions — final balance, interest earned and a chart.
Free · Pro: year-by-year breakdown table
Open toolCSV to JSON converter
DeveloperConvert CSV to JSON and back with correct quoting — private, in your browser.
Free · Pro: flatten nested JSON into dot-notation columns
Open toolOG image generator
MarketingDesign 1200×630 social preview images with live preview and PNG download.
Free · Pro: your logo drawn onto the card
Open toolMarkdown editor
WritingWrite markdown with live preview — tables, task lists, code — and export clean HTML.
Free · Pro: saved documents — keep and switch between drafts
Open toolPassword generator
DeveloperFree password generator: strong, random passwords with custom length and character options.
Free · Pro: batch generation
Open toolText diff checker
DeveloperFree text diff checker: compare texts and highlight every line, word or char change.
Free · Pro: export diff reports
Open toolPercentage calculator
MathComing soon.
BMI calculator
HealthComing soon.
Unit converter
EverydayComing soon.
Missing a tool?
Tell us what would save you time — the most requested tools get built first.
Suggest a toolToolizto Pro — one subscription, every tool
$9.99/month or $79.99/year (save 33%). Every Pro feature in every tool — invoice templates and translations, readability analysis, model comparisons, amortization schedules, batch compression — and no ads anywhere. No account needed; cancel anytime.
What you can expect
- Private by design
- Every tool runs in your browser. Nothing is uploaded, tracked across sites, or sold.
- No sign-up walls
- Open a tool, use it, leave. Even Pro needs no account — just a license key.
- Fast and focused
- One tool, one job, done well — no bloat, no dark patterns, no fake urgency.