All API Tools

Calculate your exact age in years, months, and days from any birth date — plus next birthday countdown.

Convert integers between binary, octal, decimal, hex — BigInt-precise so values past 2^53 work without rounding. Accepts 0b/0o/0x prefixes.

Calculate your Body Mass Index and find your healthy weight range — metric and imperial.

Visually craft CSS border-radius with per-corner sliders, live preview, unit toggle (px/em/rem/%), and shorthand collapsing.

Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and more instantly.

Real-time character, word, line, sentence count plus Twitter / SMS / meta-description limit warnings. Grapheme-aware (emoji counts as 1).

Calculate the future value of any deposit with daily, monthly, quarterly, or annual compounding.

Translate 5-field POSIX cron expressions into plain English with field breakdown and the next 5 scheduled runs.

Pretty-print minified CSS — preserves comments, parens (calc/url/var), string literals; canonical 'prop: value;' formatting.

Parse CSV (RFC 4180) into structured JSON — quoted fields, embedded newlines, auto-typing for numbers/booleans, instant download.

Find the final price, savings, and discount amount for any percentage off — instantly.

Strip duplicate lines from any list, preserving the first occurrence and original order. Case + whitespace toggles, optional alpha sort.

Calculate your monthly EMI, total interest, and total payment for any loan — home, car, or personal.

Convert Unix timestamps to human-readable dates and back.

Calculate Fixed Deposit maturity, total interest, and full year-by-year schedule with RBI-aligned quarterly compounding.

Calculate Fixed Deposit maturity value and interest earned — quarterly, monthly, half-yearly, or yearly compounding.

Find and replace across a block of text — plain or full regex with back-references, case toggle, multiline mode.

Single-purpose countdown for time-boxing deep work. Hours/minutes/seconds, six quick presets, audio cue at zero.

Calculate gratuity payable under the Payment of Gratuity Act, 1972 — with eligibility check and ₹20 lakh tax-exemption breakdown.

Calculate GST, add or remove tax with CGST/SGST/IGST breakdown.

Beautify, minify, and sort-key JSON in real time. Surfaces parse errors with line + column. 100% client-side.

Convert JSON arrays into CSV — RFC 4180 escaping, configurable delimiter, optional flatten of nested objects, instant download.

Validate JSON in real time with structural diagnostics — node count, max depth, type counts, and precise parse-error location.

Convert between mm, cm, m, km, inches, feet, yards, miles — all 8 units update live as you type into any cell.

Calculate EMI, total interest, and full month-by-month amortization for home, car, personal, education, or business loans.

Calculate monthly loan EMI, total interest payable, and full amortisation schedule for any loan.

Generate MD5 hashes from any text — checksums, fingerprints, and legacy compatibility. 100% client-side.

Generate strong, secure and random passwords instantly. Keep your accounts safe with our advanced password generator.

Calculate X% of a number, find what percent X is of Y, or compute percentage change — instantly.

Calculate Public Provident Fund maturity, interest earned, and year-by-year balance at the 7.1% Govt of India rate (FY 2025–26).

Type your options (one per line), click Pick — random choice with spin animation and a 10-pick history. Defeat decision fatigue.

Live regex testing with highlighted matches, capture groups, named groups, and JS-engine flag toggles (i/m/s/u/y).

Whitespace cleanup with surgical control — collapse spaces, trim lines, collapse newlines, remove blank lines, or strip ALL whitespace.

Calculate the future value of your monthly SIP investments and see how your money compounds over time.

Convert km/h ↔ mph ↔ m/s ↔ knots ↔ ft/s — all 5 units update instantly as you type.

Side-by-side line diff between two blocks of text using LCS — added/removed/equal hunks, similarity percentage, ignore-whitespace + ignore-case toggles.

Sort lines five ways — alphabetical, natural (item2 < item10), length, numeric, random shuffle. Reverse, case toggles, blank-line handling.

Convert any title to a URL-safe slug — handles diacritics (café → cafe), ligatures (ß → ss), &/+ expansion, configurable separator, smart truncation.

Calculate the duration between two times in hours, minutes, and seconds.

Convert time between any two timezones worldwide, instantly.

Calculate tips and split bills fairly between any number of people.

Generate cryptographically random RFC 4122 v4 UUIDs — single, bulk (up to 1000), with format options. 100% client-side.

Convert mg / g / kg / metric ton / oz / lb / stone — all 7 units update live as you type.

Count words, characters, sentences, paragraphs, and reading time — paste your text and see stats instantly.

Encode plain text to Base64 or decode Base64 back to text — Unicode-safe, instant, browser-only.

Convert JSON to well-formed XML — configurable root element, repeated elements for arrays, escaped special chars, optional XML declaration.

Convert between Celsius, Fahrenheit, and Kelvin instantly with one input.

Reverse text by characters, words, lines, or words-within-each-line. Grapheme-aware so emoji and accents survive intact.

Pretty-print or minify XML — handles XML declarations, comments, CDATA, self-closing tags, and HTML void elements.