All tools

Format, validate and explore JSON in code, tree, form, text or read-only view.

Diff two JSON documents — paste them or drop the files — and see exactly what changed.

Decode JWT header and payload and inspect expiry claims.

Generate cryptographically random UUID v4 identifiers in bulk.

Encode text or any file to Base64, with full Unicode support and one-click decoding.

Decode Base64 back to text or to the original file, with encoding in the same tool.

Percent-encode text for safe use in URLs and query strings.

Turn percent-encoded URLs back into readable text.

Create strong random passwords with a live strength estimate.

Compute SHA-256 hashes of any text instantly.

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or a file, in your browser.

Convert Unix epoch seconds to dates and back.

Generate a SHA-512 hash of any text or file, with a checksum comparison built in.

Live Markdown editor with split-view HTML preview and export.

Turn any title into a clean, SEO-friendly URL slug with a live score.

Work out margin, markup and profit from cost and price.

Create a GST-ready invoice with live totals, tax breakdown and amount in words, then save it as a PDF.

Issue a payment receipt with the method, reference and amount in words, ready to print or save as PDF.

Send a priced quotation with a validity date, GST breakdown and an acceptance signature block.

Raise a numbered purchase order with delivery address, required-by date and authorisation.

Issue a GST delivery challan for goods in transit, with or without values on it.

Create a monthly payslip with earnings, deductions, PF, TDS and net pay in words.

Write a professional resignation letter with the right notice period and last working day.

Issue a service certificate confirming an employee’s role, tenure and conduct.

Draft a leave-and-licence rental agreement with rent, deposit, lock-in and notice terms.

Draft a mutual or one-way non-disclosure agreement with a defined purpose and survival period.

Design a print-ready business card with a vCard QR code and cutting guides.

Generate certificates of completion, achievement or appreciation — one per name, in bulk.

Calculate body mass index in metric or imperial units.

Count words, characters, sentences and reading time live.

Convert length, weight and temperature between units.

Measure ping, jitter, download and upload speed with an animated speedometer.

Make QR codes for a URL, Wi-Fi, WhatsApp, a contact card, email, phone, SMS or a location.

Compose method, URL, headers and body, then send or export the request.

Turn a method, URL, headers and body into a ready-to-run cURL command.

Search every HTTP status code with meaning, cause and how to respond.

Run JSONPath expressions against a payload and see matches live.

Sign HS256, HS384 or HS512 JSON Web Tokens from a payload and secret.

Decode a token and audit its claims, expiry and signature settings.

Pretty-print and explore raw webhook bodies from any provider.

Parse raw HTTP headers and see what each one actually does.

Generate realistic fake JSON responses from a simple field schema.

Turn an endpoint definition into clean Markdown API documentation.

See your public IP address, whether you are on IPv4 or IPv6, and what your browser reveals.

Validate any IPv4 or IPv6 address and see what it is — public, private, loopback or reserved.

Tell IPv4 and IPv6 apart, expand or compress an IPv6 address, and check either one is valid.

Format one-line SQL into readable, indented statements.

Expanded, review-ready SQL layout with one column per line.

Collapse SQL to one line and strip comments and extra whitespace.

Break a query into clauses with a plain-English explanation of each.

Turn INSERT statements or result tables into JSON records.

Generate INSERT statements from a JSON array of objects.

Build Postgres SELECT, INSERT, UPDATE, DELETE and DDL from a form.

Build MySQL SELECT, INSERT, UPDATE, DELETE and DDL from a form.

Calculate loan EMI, total interest and repayment total.

Project the future value of monthly SIP investments.

See what compounding turns your money into, and what it adds over simple interest.

Work out fixed deposit maturity, and what it is worth after tax.

Project a Public Provident Fund balance across the full 15-year term.

Work out what a monthly recurring deposit matures to.

Interest on the principal only — for gold loans, informal lending and quick checks.

See the EMI, the total interest, and how each payment splits over the term.

Find the loan a lender would sanction on your income and existing EMIs.

Work out how long a loan takes to clear at the instalment you can afford.

See what paying extra saves in interest, and how much sooner the loan ends.

Turn a start value and an end value into an annualised rate of return.

Annualised return on investments made and withdrawn at irregular dates.

Project what a single investment grows to, in nominal and real terms.

What today's money will cost later, and what tomorrow's is worth now.

Compare loan costs and see a year-by-year amortisation view.

Project your provident fund to retirement, with the employer split and the ₹15,000 ceiling handled properly.

Project an NPS corpus and, more usefully, the monthly pension the compulsory annuity will actually pay.

Work out what a Sukanya Samriddhi account matures to — deposits for 15 years, maturity at 21.

See how long a corpus lasts when you withdraw from it monthly — and whether it lasts at all.

Work backwards from a target — what monthly SIP reaches ₹1 crore in the time you have?

See what raising your SIP each year is worth — and what the instalment grows to by the end.

A 10% flat loan is really about 18%. See what a flat rate actually costs before you sign.

Estimate income tax for FY 2025-26 or FY 2024-25 under both regimes, with the 87A rebate applied automatically.

Add or remove GST at any rate and split CGST/SGST.

Convert pay between hourly, daily, weekly, monthly and annual, and work out any hike.

Work out the house rent allowance exemption, and which limit is binding.

Work out the gratuity payable under the Payment of Gratuity Act, and how much of it is tax free.

Generate a year of signed-ready rent receipts for your HRA claim, and print them in one go.

Work out tax deducted at source by section, with thresholds applied.

Work out whether you owe advance tax, and what is due at each instalment.

Compare both regimes side by side, and find the deductions that tip the balance.

Work out capital gains tax on shares, property, gold or debt funds under the rules that changed in July 2024.

EMI, total interest, the full repayment schedule, and what paying extra each month or year would save.

Find the property price your income and savings actually support.

Compare renting against buying on net worth, not just on whether the EMI matches the rent.

The cash you need upfront, and what saving for it takes each month.

What a rental property really returns after vacancy, costs and the EMI.

Project a property's value, then strip out costs and inflation to find the real return.

What prepaying a home loan saves in interest, and how many years it removes.

EMI, total interest and the repayment schedule for a car loan.

EMI and total interest on a two-wheeler loan.

What a journey costs in fuel, split per person if you are sharing.

The car your budget supports once running costs are counted, not just the EMI.

Work out real mileage from a tank, and compare it to the claimed figure.

Real two-wheeler mileage from a tank, with cost per kilometre.

The true cost of running a car per kilometre, including depreciation.

What a two-wheeler costs to run each year, and per kilometre.

What a vehicle will be worth each year, and what the loss really costs.

Plan a multi-leg road trip: fuel, tolls and what each person owes.

Your attendance percentage, and how many classes you can still miss.

Whether you can still hit the attendance requirement by the end of term.

Credit-weighted CGPA from subjects or from semester results.

Convert CGPA to a percentage, with the conversion factor in your hands.

Convert a percentage back to CGPA on any scale.

Credit-weighted grade point average on a 4.0 or 10-point scale.

Your grade so far, and the mark you need in what is left.

Overall percentage across subjects, done the way boards actually do it.

Average, median and spread across a set of marks.

Split the days you have left across subjects, and see whether the plan fits.

Find exact age in years, months, days and total days lived.

Solve percentage of, percentage change and reverse percentages.

What you actually pay after stacked discounts, coupons and tax.

Simplify a ratio, divide an amount by it, or solve a proportion.

Mean, median, mode and spread from any list of numbers.

Add, subtract, multiply and divide fractions — exactly, not in decimals.

Hours worked between two times, with breaks and overnight shifts handled.

The gap between two dates in years, months, days — and every other unit.

Working days between two dates, with your own week and holidays.

Count business days between dates, excluding weekends and holidays.

A live countdown to any date and time.

Work out a tip and split the bill, with an option to round it evenly.

Split a bill by what each person actually ordered, not by headcount.

How much to save each month for a goal — or what your saving will grow to.

Whether your corpus will actually fund your retirement, in real terms.

Turn a JSON array of objects into a spreadsheet-ready CSV file.

Parse a CSV file into a clean, properly typed JSON array.

Build a real .xlsx spreadsheet from JSON, with typed cells and a frozen header.

Read an .xlsx workbook straight into JSON, one sheet at a time.

Convert JSON into clean, readable YAML for config files and manifests.

Parse YAML — anchors, aliases, blocks and all — into JSON.

Transform JSON into well-formed XML, with attributes and sensible element names.

Parse XML into a clean JSON structure, with attributes and repeated elements handled properly.

Generate a Markdown table, bullet list or section list from JSON.

Fix broken JSON automatically — LLM output, hand-edited config and copied code.

Shrink JPG, PNG and WEBP files with a quality slider and before/after sizes.

Resize images to exact pixel dimensions or ready-made social presets.

Convert JPG to lossless PNG in your browser — no upload, no watermark, no limit.

Convert PNG to WEBP with quality control, transparency kept and an instant size comparison.

Convert PNG to JPG in your browser, with control over what fills the transparent areas.

Convert JPG to WEBP and cut image weight by a quarter or more, without uploading anything.

Convert WEBP to PNG so any editor, email client or print workflow can open it.

Rasterise SVG to PNG at any size or scale, with transparency kept and nothing uploaded.

Decode Base64 or a data URI back into a viewable, downloadable image.

Encode any image as a Base64 string, data URI, CSS rule or HTML tag.

Compress a photo to an exact file size — 20 KB, 50 KB, 100 KB — for any upload form.

Draw a signature or lift one off a photo, and export it with a transparent background.

Crop a photo to 35 × 45 mm, 2 × 2 inch or any official size, and lay out a print sheet.

Crop an image by dragging, or to an exact pixel rectangle, with ratio locks.

Turn an image by 90°, mirror it, or straighten a crooked horizon by a fraction of a degree.

Stamp text or a logo across an image, in one corner or tiled over the whole frame.

See what a photo reveals — camera, timestamps, GPS location — and strip it without touching the pixels.

Convert iPhone HEIC and HEIF photos to JPG, PNG or WEBP — in batches, in your browser.

Turn a PNG into a multi-resolution favicon.ico, with the PNGs and head markup to go with it.

Extract text from a photo, screenshot or scan — in 19 languages, without uploading it.

Combine multiple PDFs into one file and reorder pages before exporting.

Reduce PDF file size locally and compare before/after with a progress indicator.

Extract a page range or split every page into separate PDFs and download a ZIP.

Turn PDF pages into JPG or PNG images at the resolution you choose, entirely in your browser.

Combine JPG, PNG or WEBP images into one PDF with your choice of page size and margins.

Convert a Word .docx to PDF in your browser, keeping the text selectable and the file private.

Turn an .xlsx spreadsheet into a clean printable PDF table, parsed entirely in your browser.

Get a PDF under a stated limit — 100 KB, 200 KB, 500 KB — by naming the number instead of guessing.

Stamp DRAFT, CONFIDENTIAL or your own text across a PDF, with a preview of the real output.

Find what actually changed between two versions of a document, down to the word.

Write bold, italic, strikethrough and monospace WhatsApp messages with a live chat preview.

Format WhatsApp text with bold, italic, strikethrough and monospace, and preview it instantly.

Create a wa.me click-to-chat link with a pre-filled message, ready for a website or bio.

Turn your WhatsApp number and a pre-filled message into a QR code you can print.

Browse ready-to-use WhatsApp status lines for business, festivals, updates and everyday posts.

Work out what each appliance costs to run per day, month and year at your own tariff.

See what a rooftop solar system would save on your bill and how long it takes to pay for itself.

Work out how many solar panels and how many kW you need, and whether your roof is big enough.

Work out how many litres of paint a room needs, and how many cans to buy, before you go shopping.

Calculate how many tiles and boxes a floor or wall needs, including wastage for cuts.

Work out how many boxes of flooring a room needs and what it will cost, wastage included.

Work out how many cement bags a concrete pour or a plastering job needs, with sand and aggregate.

Calculate how many bricks a wall needs, plus the cement and sand for the mortar.

Work out concrete volume and the cement, sand and aggregate a slab or footing needs.

Calculate floor, wall and ceiling area for a room, with doors and windows deducted.

Convert land area between square feet, gaj, acre, hectare, bigha, guntha, cent and more.

Work out how many litres a tank holds and how long that lasts your household.

Find the right air conditioner size for a room, and what it will cost to run each month.

Size a home inverter and battery for the load you want to run and the backup hours you need.

Convert a bar schedule to kilograms and tonnes using the d²/162 rule, across every TMT size.

Cement, sand and water for plastering, with openings deducted and the right thickness for the surface.

Blocks, thin-bed adhesive and wall weight for AAC masonry, compared against the same wall in brick.

Cement, sand and water for any volume of mortar, with the mixes compared side by side.

Sheets, screws and ridge for a pitched roof, allowing for the slope and the side lap.

Dig volume, spoil after swell and truck loads, including working space and battered sides.

Fill needed around a finished structure, allowing for compaction shrinkage and reusing the excavated soil.

Concrete, steel and shuttering for isolated footings — blinding, footing and pedestal together.

Bars, lengths and weight for a slab mat, from the spacing on the drawing.

Cutting lengths, laps and weights for every bar mark, with the working shown and CSV export.

Size a house connection — connected load, maximum demand, phase and main breaker.

Cable size from current and run length, checked against both the ampacity and the voltage drop.

Pump HP from flow and total head, with friction worked out by Hazen-Williams.

Septic tank size for a household, following IS 2470 — detention volume plus sludge.

How much rain a roof can collect, after runoff losses and first flush, with storage sizing.

What a house costs to build, by quality and city, broken down across the trades.

Cement, steel, sand, aggregate and bricks for a whole building, from per-square-foot rates.

Price a bill of quantities line by line, with overheads, profit and GST shown separately.

Concrete, steel, bricks and mortar summed across every element of a structure.

Compare builder quotes on scope, not just price, and see which is genuinely best value.

Estimate what interior work will cost, broken down by kitchen, wardrobes, flooring, ceiling and the rest.

Build a resume from six templates with live preview, then print, save as PDF or download it as text.

Upload a PDF or Word resume and score it out of 100 against ATS and recruiter checks.

Turn your role, skills and achievements into a structured cover letter in four tones.

Find your last working day from a resignation date, and what leaving early would cost to buy out.

Add up total work experience across jobs, with overlaps merged and career gaps shown.

Compare job offers on what they are actually worth — take-home pay, equity, bonuses and the cost of the job.

Break an annual CTC into basic, HRA, allowances, PF and gratuity, and see the gross salary underneath.

Work out monthly take-home pay from CTC after PF, professional tax and income tax, in both regimes.

Check a PAN is correctly formed and read what its fourth character says about the holder.

Verify a GSTIN checksum, read the state it belongs to, and pull out the holder’s PAN.

Check an IFSC is correctly formed before a transfer, and catch the letter O typed for a zero.

Check a UPI ID is correctly formed and see which payment provider the handle belongs to.

Verify an IBAN with the ISO 7064 mod-97 check that catches almost every typo.

Check an Indian registration mark and read the state and RTO it was issued by.