Tools
Fast calculators, converters, and developer helpers — grouped by category, no signup needed.
Calculator
A full calculator with correct order-of-operations, parentheses, scientific functions, memory keys, a saved history tape, and full keyboard support.
Open toolEMI Calculator
Work out the equated monthly instalment (EMI) for a loan from the amount, interest rate, and tenure — plus total interest and total payable.
Open toolSIP Calculator
See how a recurring monthly investment could grow over time at an expected annual return — with your invested amount and estimated returns split out.
Open toolCompound Interest
Calculate how a lump sum grows when interest compounds — across any rate, duration, and compounding frequency.
Open toolFD Calculator
Work out the maturity amount and interest earned on a cumulative fixed deposit, with your choice of compounding frequency.
Open toolRD Calculator
See what a fixed monthly recurring deposit grows to at maturity, with interest compounded quarterly the way Indian banks do.
Open toolSimple Interest
Calculate simple interest and the total amount for a principal over a period at a flat annual rate.
Open toolGST Calculator
Add GST to a net amount or extract it from a GST-inclusive price, with the CGST/SGST split shown.
Open toolLoan Comparison
Put two to four loan offers next to each other — amount, rate, and tenure — and instantly see which one costs the least in EMI and total interest.
Open toolGoal / Retirement Planner
Set a target corpus and a time frame, and see the monthly SIP you'd need to get there — with any savings you already have credited towards the goal.
Open toolSWP Calculator
See how long a corpus lasts — or what's left at the end — when you withdraw a fixed amount every month and the balance keeps earning a return.
Open toolIncome Tax Estimator
Estimate your Indian income tax for FY 2025-26 and FY 2026-27 under the new or old regime — with slabs, the Section 87A rebate, surcharge, and 4% cess worked out for you.
Open toolJSON Formatter
Paste raw JSON and get it neatly indented, minified, or validated — entirely in your browser.
Open toolBase64 Encoder / Decoder
Encode any text to Base64 or decode it back, instantly and locally — with full Unicode and emoji support.
Open toolUUID Generator
Create one or many version-4 UUIDs for IDs, keys, and test data — generated securely on your device.
Open toolEpoch / Timestamp Converter
Convert a Unix timestamp to a date (and back), in seconds or milliseconds, with ISO, UTC, and local formats.
Open toolPassword Generator
Generate secure random passwords with your choice of length and character sets, using the Web Crypto API.
Open toolRandom String Generator
Generate any number of random strings at a chosen length from the character sets you pick — lowercase, uppercase, numbers, and symbols — and copy them one by one or all at once.
Open toolHash Generator
Compute cryptographic hash digests of any text with the SHA family, locally via the Web Crypto API.
Open toolJWT Decoder
Decode a JSON Web Token to read its header and payload claims — locally, with no signature verification.
Open toolURL Encoder / Decoder
Encode text so it's safe to put in a URL, or decode percent-encoded text back to readable form.
Open toolColor Converter
Convert a color between HEX, RGB, and HSL, with a live swatch preview and one-click copy — paste any of the three formats.
Open toolText Diff
Compare two blocks of text line by line and see exactly what was added, removed, or left unchanged.
Open toolJSON Diff
Compare two JSON objects and get a clear list of the fields that were added, removed, or changed — with full paths.
Open toolJSON ↔ CSV ↔ YAML
Convert data between JSON, CSV, and YAML in any direction — paste one, pick a target, and copy the result.
Open toolRegex Tester
Test a regular expression against sample text with live match highlighting, a plain-English breakdown of your pattern, and a cheat sheet to learn from.
Open toolQR Code Generator
Generate a QR code for any text or URL and download it as SVG or PNG — encoded entirely in your browser with no third-party libraries.
Learn moreMarkdown Preview
Convert Markdown to formatted output as you type — headings, lists, tables, links, and fenced code — with a one-click view of the HTML it generates. Paste text or open a .md file.
Open toolWeb Playground
Write HTML, CSS, and JavaScript in three panes and see the result render instantly in a sandboxed preview. A fast scratchpad for trying an idea, a snippet, or a layout.
Open toolUnit Converter
Convert between units across length, weight, temperature, data, speed, volume, area, and time — instantly.
Open toolPercentage Calculator
Answer the three everyday percentage questions: what is X% of Y, X is what percent of Y, and percent change.
Open toolAge Calculator
Find an exact age from a date of birth — years, months, and days — plus the total number of days.
Open toolDate Difference
Calculate the time between two dates as total days and weeks, and as a years/months/days breakdown.
Open toolWord Counter
Count words, characters (with and without spaces), sentences, paragraphs, lines, numbers, special characters, and estimated reading time as you type.
Open toolCase Converter
Convert text between cases — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, and CONSTANT_CASE.
Open toolTo-do List
Capture tasks, tick them off, filter by status, and clear what's done — all saved on your device, no signup.
Open toolReminder
Create a reminder with a date and time — get a browser alert while the tab is open, and download a calendar event so it reaches you even when the site is closed.
Open tool