How do I share a calculator result with a link?

Use the pattern https://www.qwickton.com/?q=URL_ENCODED_EXPRESSION#calculator — for example ?q=10%2B4#calculator evaluates 10+4. Full documentation is in /llms.txt and /ai-tools.json.

Does Qwickton send my data to a server?

This suite runs in the browser after load; processing stays on the user device. There is no account or backend API for tool execution in the static deployment.

Where is the machine-readable tool list for AI assistants?

See https://www.qwickton.com/ai-tools.json (workspaces + overview), https://www.qwickton.com/ai-tools-micro.json (every micro-tool URL #vault/slug), and https://www.qwickton.com/llms.txt (plain-text guidance). robots.txt lists the sitemap.

How do I link to one specific micro-tool?

Use https://www.qwickton.com/#vault/ followed by the tool id from ai-tools-micro.json (URL-encode if needed). The page is one HTML shell; titles and meta update in the browser for that slug.

Where are the privacy policy, cookie policy, and terms?

See https://www.qwickton.com/privacy.html (Privacy Policy), https://www.qwickton.com/cookies.html (Cookie Policy), https://www.qwickton.com/terms.html (Terms of Use), and https://www.qwickton.com/about.html (About Qwickton). Links are also in the site footer.

What if the URL hash is wrong, mixed case, or a micro-tool id does not exist?

Workspace hashes like #json or #calculator are matched case-insensitively. Unknown hashes fall back to the home overview. For #vault/slug, if the id is missing you still get the micro-tools directory. Shared og:title and meta description update in the browser to match the active tool.

Can I open a tool with a search-friendly URL without using # in the link?

Yes. Use https://www.qwickton.com/?mt=TOOL_ID for a micro-tool (example: ?mt=coin-toss) or https://www.qwickton.com/?tool=WORKSPACE for a full workspace (example: ?tool=calculator). The page loads the same app and moves to the correct tool; calculator ?q= parameters are preserved.

Can I view PDFs and edit text-like documents without upload?

Yes. Use the Viewers & editors workspace for PDF page viewing, DOCX text extraction, and editing TXT/MD/JSON/XML/HTML style files in-browser.

Does Qwickton work on iPhone, iPad, and Safari?

Yes. Qwickton is a responsive web app at https://www.qwickton.com. Use Safari or Chrome on iOS, wait for the page to load, then pick any tool. Add to Home Screen (Share menu) for an app-like icon; offline use depends on cached assets from prior visits.

Qwickton | Free Online Calculator & Browser Tools (Privacy-First)

Tools that stay in your browser — minimal drama, maximum speed

Encode, convert units, tune images on canvas, format JSON, view PDFs/DOCX, test regex, open Math lab or Advanced labs (CIDR, Luhn, WCAG contrast) — same tab, no uploads, no account.

400+ micro-tools Search by task and open instantly

Viewers & editors PDF, DOCX, Markdown, HTML, JSON/XML

Image + document flows Convert, compress, passport sheets, signatures

Quick Ctrl + K to search like you mean it · ? for shortcuts · star tools in search · paste buttons where you edit text

No account · data stays on device
Works offline after first load
One search for every workspace

Most-used workflows

One tap to open the right workspace and start quickly.

Pages HEIC, PDF, coin toss & more Standalone pages — same in-browser processing, easy to bookmark and share.

All tools

Tap a card — the tool opens in a quick popup over this list. Filter by category or search (count loads with the page).

… tools on one page — students, teachers, devs, café Wi‑Fi. Search or pick a category; each card nudges you toward related picks below.

Categories Tap a tile — stack filters with search

Dedicated tool pages

Every standalone URL below uses the same local processing as the app — open in a new tab or share the link. Also see the full index.

Image format converters

PDF & compression

Editing helpers

Quick utilities

Coin Toss

ID & document helpers

Text

Hex ↔ UTF-8

Spaces optional in hex input.

YAML ⟷ JSON

Round-trip in your browser (js-yaml). Use the main JSON editor above after “YAML → JSON”.

Paste CSV — basic quoted-field support.

Category From

To

—

Uses browser CompressionStream (Chrome, Edge, Safari 16.4+).

Smart calculator — normal & scientific (runs in your browser)

How to use · examples · privacy

Type or tap the keypad. Basic: 10+4, (100-20)/2, 2**8, 25% of 200. Advanced: sqrt(2), sin(pi/2), log(10). Open a shared result: 10+4, sqrt(16), 3 km to m. Everything stays on your device.

Expression

Keypad

Try:

Reference — units & formulas (interactive)

Each row is a mini-solver: enter only the numbers you already have. If a shape needs two facts (e.g. circle: area and radius), fill one to get the other — or both to verify. If it needs three (rectangle: area, length, width), fill two to get the third. Letters and symbols are ignored in number boxes. Tap Calculate.

Length

Open a row → pick direction → type one number (digits only). Tap Calculate.

km ↔ m 1 km = 1000 m

Direction Value

m ↔ cm 1 m = 100 cm

Direction Value

cm ↔ mm 1 cm = 10 mm

Direction Value

mi ↔ km 1 mi ≈ 1.60934 km

Direction Value

Area

Rectangle A = ℓ × w

Any two of A, ℓ, w finds the third. All three checks ℓ×w = A.

Area A Length ℓ Width w

Triangle A = ½bh

Any two of A, b, h — third is computed (b,h ≠ 0 when dividing).

Area A Base b Height h

Circle A = πr²

Give A or r (or both to verify).

Area A Radius r

Trapezoid A = ½(a + b)h

Any three of A, a, b, h determine the fourth (parallel sides a, b).

Area A a b h

Volume

Box V = ℓwh

Any three of V, ℓ, w, h — fourth unknown (divide only if product of known edges ≠ 0).

Volume V ℓ w h

Cylinder V = πr²h

Any two of V, r, h find the third (r,h ≥ 0).

V r h

Sphere V = (4/3)πr³

V from r, or r from V (V ≥ 0).

V r

Cone V = (1/3)πr²h

Any two of V, r, h — third unknown.

V r h

Algebra & identities

Quadratic ax² + bx + c = 0 x = (−b ± √(b²−4ac)) / (2a)

a b c

Right triangle a² + b² = c² c hypotenuse; a,b legs

Any two nonnegative sides find the third (c is longest when all known).

Leg a Leg b Hypotenuse c

Binomial square (a + b)² = a² + 2ab + b²

a b

Difference of squares a² − b² = (a − b)(a + b)

a b

Math & STEM lab

One page — many solvers: number theory, combinatorics, linear systems, complex numbers, 2×2 matrices & eigenvalues, 3D vectors, numeric derivative & integral of f(x), descriptive stats, binomial PMF, arithmetic/geometric sums, compound interest & loan EMI, deg↔rad. Curriculum-style topics through 2026; all evaluation runs in your browser.

GCD · LCM

Prime & factorization

nCr · nPr · Fibonacci

Linear 2×2 — ax + by = c, dx + ey = f

a b c d e f

Complex z₁ op z₂ (rectangular)

Re₁ Im₁ Re₂ Im₂

Re Im

Matrices 2×2

A = [[a,b],[c,d]] · B = [[e,f],[g,h]]

A

B

Vectors in ℝ³

ax ay az bx by bz

Numeric calculus (only variable `x`)

Same functions as main calculator. Trig uses radians.

f(x)

x₀ h

a b n (even)

Descriptive stats

Numbers (comma or space)

Binomial PMF P(X=k)

Arithmetic sum (n terms)

Geometric infinite sum |r|<1

Finance

Compound A = P(1+r)ᵗ (r decimal/year). EMI: monthly rate = annual%/12/100.

P r t yrs

Loan % APR months

Degrees ↔ radians

Trig (angle in degrees)

0 chars · 0 words · 0 lines

Markdown — live preview

Rendered with marked + DOMPurify (scripts/iframes stripped). For notes & READMEs.

Source

Preview

A

B

PNG → JPEG (or stay PNG): open a photo, adjust, then JPEG for smaller files or PNG for lossless. Download runs in your browser — no upload to a server.

Click image to pick a pixel color (shown in Color tab).

Brightness 0 Contrast 0 Saturation 0 Blur 0

Resize to width height

Signature pad

Draw with mouse or finger. Export PNG or a one-page A4 PDF — processing stays in this browser. This is not a government PKI / DSC; it’s a bitmap for forms and PDFs.

Live preview

Document viewers & editors (frontend)

Open a file to preview in-browser: PDF pages, DOCX text extract, TXT/MD/JSON/XML editing, and safe HTML preview. Nothing is uploaded.

Open document PDF, DOCX, text, HTML… — not uploaded

Supported: PDF, DOCX, TXT, MD, HTML, CSV, JSON, XML, YAML.

Mode

Pick HEX

R G B

H S L

Image studio mein image par click karke bhi color yahan set hota hai.

UUID v4

SHA-256 (UTF-8 text)

JWT — decode (no verify)

Paste a JWT; header & payload decode locally. Signature is not cryptographically verified here.

Header

Payload

Signature (base64url · not verified)

Unix time → local

Date → Unix

World time — two zones

Your zone (detected) Compare with

Pattern Flags

Category · Text

Password

Length

A–Z a–z 0–9 !@#$…

Lorem ipsum

Words

Category · Codes & scans

QR code

High error correction for print; size matches scan distance.

Content

Size (px) Error correction

Barcode

Retail & logistics formats (JsBarcode). Values must match format rules.

Format Value

Category · Passport & ID photos

Passport / visa photo sheet (PDF)

Choose from global presets (always verify latest embassy/authority rules). Fine-tune framing with fit, zoom, and X/Y position before export. Output is an A4 printable grid and continues to additional pages when needed.

Country / preset Print DPI How many photos?

Portrait photo Tap to browse or drop an image — face-forward works best

Fit mode Background

Zoom (1.00×) Move X (0%) Move Y (0%)

Use a clear face-forward photo, then adjust zoom and positioning to match requirements.

Category · Compress

Shrink files (browser)

Images: re-encode JPEG/WebP with quality. PDF: each page is rasterized and re-packed (can reduce scans a lot; text-only PDFs may not shrink much).

Type Browse file Image or PDF — processed only in your browser

Output Quality 0.82

IPv4 CIDR calculator

Enter address/prefix (e.g. 192.168.1.0/24). All math runs locally.

CIDR

Luhn check

Card numbers, IMEI — digits only (spaces OK). Does not contact issuers.

Password strength (entropy estimate)

Rough bits of entropy from length × character classes — educational, not a bank audit.

Base32 (RFC 4648)

Encode / decode for TOTP backup codes & binary-safe text.

WCAG contrast

Foreground vs background — relative luminance & large/normal text AA/AAA.

Text (hex) Background (hex)

Tools that stay in your browser — minimal drama, maximum speed

Most-used workflows

All tools

Dedicated tool pages

Image format converters

PDF & compression

Editing helpers

Quick utilities

ID & document helpers

Text

Hex ↔ UTF-8

YAML ⟷ JSON

Smart calculator — normal & scientific (runs in your browser)

Reference — units & formulas (interactive)

Length

Area

Volume

Algebra & identities

Math & STEM lab

GCD · LCM

Prime & factorization

nCr · nPr · Fibonacci

Linear 2×2 — ax + by = c, dx + ey = f

Complex z₁ op z₂ (rectangular)

Matrices 2×2

Vectors in ℝ³

Numeric calculus (only variable x)

Descriptive stats

Binomial PMF P(X=k)

Arithmetic sum (n terms)

Geometric infinite sum |r|<1

Finance

Degrees ↔ radians

Trig (angle in degrees)

Markdown — live preview

A

B

Signature pad

Document viewers & editors (frontend)

UUID v4

SHA-256 (UTF-8 text)

JWT — decode (no verify)

Unix time → local

Date → Unix

World time — two zones

Password

Lorem ipsum

QR code

Barcode

Passport / visa photo sheet (PDF)

Shrink files (browser)

IPv4 CIDR calculator

Luhn check

Password strength (entropy estimate)

Base32 (RFC 4648)

WCAG contrast

Numeric calculus (only variable `x`)