Free Online Tools

Convert, merge, split, compress, encrypt, watermark — plus AI deep-parse to Word / Markdown.

Compound interest, mortgage, SIP, retirement, currency — with transparent formulas.

JSON, Base64, URL, timestamps, UUIDs, hashes, AES/RSA, Cron, timezones & JSON/XML/YAML/CSV.

Word count, case conversion, diff, dedupe, Lorem Ipsum, Markdown preview & regex testing.

Units, percentages, dates, age, number bases, random numbers, scientific / matrix / stats.

BMI, body fat, BMR, heart-rate zones, sleep cycles, water intake & blood pressure.

Dice, coin flip, playing cards, what-to-eat & random picker — let luck decide.

Cat personality test: 16 behavior questions reveal your cat's type among 16 feline personalities (MBTI for cats).

Compress, convert, resize, image-to-PDF, Base64 & color picking.

CSS gradients & layout, contrast checking, SVG editing, an online teleprompter & fuse bead patterns.

IP lookup, WHOIS, DNS records, HTTP client, WebSocket tester & SSL certificates.

Password generation & strength, tokens, charset conversion & a local API key manager.

Mock data, API docs, SQL/JSON/XML to Model classes & domain lookup.

Sorting visualizer, charts, flowchart maker, clipboard manager, data sampling & JSON tree.

1,200+ AI sites across 16 sections — chat, art, writing, video, coding — one click to official sites.