All tools

Every AtoZTools tool, grouped by category. Filter by category or search by name — the list updates as you type.

Working with PDFs? The PDF Tools hub gathers the whole PDF suite — merge, split, convert, edit, sign and protect — on one page, alongside the all-in-one PDF Toolkit.

JSON Studio

Format, validate, minify, query and compare JSON in your browser, with precise line-and-column errors.

Live

Regex Tester

Test patterns against sample text with match highlighting, capture groups and a safe one-second timeout.

Live

CSV Cleaning Studio

Remove duplicates, fix missing values, standardise dates and export a clean CSV. Your file never leaves your device.

Live

Chart Builder

Build charts from CSV data with aggregation, sorting and accessible colour palettes. Export as PNG or SVG.

Live

Image Optimizer

Compress, resize, crop and convert up to 20 images at once, in your browser, with before-and-after sizes.

Live

PDF Toolkit

Merge PDFs, extract or delete pages, rotate and reorder them — processed locally, never uploaded.

Live

Structured Data Generator

Generate JSON-LD for Article, Product, FAQPage, LocalBusiness and more, with live validation against required properties.

Live

Robots.txt and Sitemap Toolkit

A robots.txt rule builder with a URL tester and templates, plus an XML sitemap generator with validation.

Live

UTM Campaign Builder

Create UTM-tagged URLs with validation, naming presets, bulk CSV mode and saved presets in your browser.

Live

Pricing and Break-Even Simulator

Simulate price, profit, margin and break-even units with all fees included and every formula on display.

Live

Content Analyzer

Analyse word counts, Flesch readability scores, long sentences and repeated phrases, with highlighted suggestions.

Live

Text and Document Comparison

Diff two documents side by side or inline, with change navigation, summary counts and an exportable HTML report.

Live

On-Page SEO and Redirect Checker

Enter a URL and get the full redirect chain, status, title and meta checks, heading outline, link counts and a prioritised fix list.

Live

Security Header and DNS Checker

Check HSTS, CSP and other security headers, TLS details, and DNS/email authentication records (SPF, DKIM, DMARC).

Live

QR Code Generator

Create QR codes for links, contacts, Wi-Fi and locations, with size and error-correction controls, and download as PNG, SVG or PDF.

Live

Password Generator

Generate strong passwords with length and character-set controls, an honest entropy estimate and a session-only history.

Live

Base64 Studio

Encode or decode Base64 text and files with URL-safe alphabet support and precise, positioned error messages.

Live

Word Counter

Count words, characters, sentences and paragraphs, with reading and speaking times and one-to-three-word keyword density.

Live

Add Page Numbers

Add "Page 2 of 3"-style numbers to a PDF in your browser, with six positions and a custom start count.

Live

Add Watermark

Add a translucent text watermark to a PDF in your browser — opacity, angle, size and tiled layout controls.

Live

Compare PDF

Diff two PDFs page by page at word level: counts of added, removed and unchanged words, similarity scores and highlighted changes.

Live

Compress PDF

Compress a PDF in your browser: keep text with a lossless re-save, or go smallest with page images. Real byte counts shown.

Live

Crop PDF

Crop PDF pages by setting margins in points or percent, in your browser. Honest note: a crop hides content, it does not delete it.

Live

Edit PDF

Overlay text, rectangles, lines and images onto any page of a PDF, placed by clicking a live preview — processed in your browser.

Live

Extract Pages

Extract pages like 3,1 or 1-3,5 from a PDF into one new file, in the order listed, processed in your browser.

Live

Fill PDF Forms

Fill genuine AcroForm fields — text, checkboxes, dropdowns, radio groups and lists — with optional flattening, in your browser.

Live

HTML to PDF

Paste an HTML snippet and download an A4 PDF of its rendered appearance. Scripts are stripped first; everything runs in your browser.

Live

JPG to PDF

Combine up to 10 PNG, JPEG or WebP images into a single PDF with fit, A4 or Letter pages — built entirely in your browser.

Live

Merge PDF

Combine up to 10 PDFs into a single document, in list order, entirely in your browser — nothing is uploaded.

Live

OCR PDF

Make scanned PDFs searchable: OCR in your browser adds an invisible text layer so find, select and copy work.

Live

Organize PDF

Reorder, rotate and delete PDF pages from a thumbnail grid, with drag and keyboard controls. Runs in your browser.

Live

PDF to JPG

Turn each page of a PDF into a numbered JPG at your choice of DPI and quality — rendered entirely in your browser, zipped when there are several.

Live

PDF to Markdown

Convert a PDF's text layer to Markdown — headings from type size, lists from markers, paragraphs from gaps — entirely in your browser.

Live

Protect PDF

Password-protect a PDF with AES encryption and set print, copy and edit permissions — all in your browser.

Live

Redact PDF

True redaction: pages with marked regions are rebuilt as images so covered text is removed, not hidden. Done in your browser.

Live

Remove Pages

Remove pages like 2,4-6 from a PDF and keep the rest in order. Runs in your browser; removing every page is refused.

Live

Repair PDF

Repair a structurally damaged PDF in your browser — broken cross-reference rebuilt, metadata kept, pages reported.

Live

Rotate PDF

Rotate all pages or a chosen range by 90, 180 or 270 degrees, added to existing rotation. Runs in your browser.

Live

Scan to PDF

Assemble up to 10 scanned or photographed pages into one PDF, with per-page rotation and a document-cleaning enhancement — all in your browser.

Live

Sign PDF

Place a drawn, typed or uploaded signature on a PDF page and flatten it into the page content — processed entirely in your browser.

Live

Split PDF

Split one PDF by ranges, every N pages, or page by page. Multi-part results arrive as one ZIP, built in your browser.

Live

Unlock PDF

Remove password protection from a PDF you own — enter a password that opens it, get a clean unprotected copy.

Live

Favicon Generator

Make a multi-layer ICO, PNG set, manifest and HTML snippet from an image or letter mark.

Live

Barcode Label Maker

Create Code 39 and EAN barcodes and print label sheets at exact millimetre sizes.

Live

Email Signature Generator

Create a professional email signature in table HTML with a plain-text version, in your browser.

Live

Pomodoro Timer

Run focus sessions with short and long breaks, custom lengths and a session count.

New

Citation Generator

Create reference-list entries and in-text citations in APA 7th, MLA 9th and Chicago 17th styles.

New

Extractive Summarizer

Summarise pasted text extractively: top sentences by count or percentage, in original order.

New

Dictionary

Look up one English word at a time: meanings by part of speech, pronunciation and examples.

New

Basic Grammar Checker

Find repeated words, spacing slips, capitalisation slips and ten common typos in pasted text.

New

Business Card & Service Card Maker

Front-and-back cards in exact millimetres, with bleed and a safe margin, as PDF and 300 DPI PNG.

Live

Logo Maker

Original geometric logo marks with wordmark and tagline, exported as SVG, PNG and vector PDF.

Live

Luggage Tag Maker

Front-and-back luggage tags in exact millimetres, with a strap hole clear zone, as vector PDF and 300 DPI PNG.

Live

Certificate Maker

Simple recognition certificates with a mandatory named issuer, as A4 or Letter PDF and 300 DPI PNG. No seals or verification wording.

Live

CV Maker

A professional CV built section by section — experience, education, skills and CEFR language levels — as an A4 PDF.

Live

Invoice & Quotation Builder

Invoices and quotations with line items, discounts and taxes, every formula shown, as A4 PDF or 300 DPI PNG.

Live

Net Salary Calculator

A net pay estimate from gross pay and deductions you enter, per pay period, monthly and annual. Not a pay slip.

Live

Letter Templates

Eight professional letter templates, filled in and edited by you, as A4 PDF or PNG. No employment-verification letters.

Live

Passport Photo Maker

Passport-size photos at 300 DPI with a multi-copy print sheet, from your own photo, on your device. Not an official document.

Live

Badge & Pass Designer

Event badges with a free-text role, designed in your browser, as PNG and vector PDF. No press mode or official seals.

Live

Event Ticket Designer

Tickets for your own events, designed in your browser, as PNG and vector PDF. No transport, cinema, bank or government layouts.

Live

Student Card Maker

Front-and-back student cards in CR80 size with a mandatory Issued-by school name, as PNG and print PDF. No logos or verification claims.

Live