Free Tools to Make Your Work Simple
We offer free PDF, image, SEO and everyday online tools to make your life easier — every one runs 100% in your browser. No upload, no account, no watermark.
Solve your exact problem
111 free tools in 7 suites — every one runs in your browser.
Prefer one format at a time? Browse all 8 file converters →
Not sure where to begin?
Six tools that answer the questions people ask us most — pick the one that matches your problem.
Image Compressor
"This photo is too big to upload" — shrink it in seconds, no quality you can see.
Merge PDF
Combine PDFs into one file — contracts, invoices, scans — without uploading them.
SERP Preview
See exactly how your page will look in Google before you publish it.
CSV ↔ JSON
Turn a spreadsheet into an API payload — and back — with quoted fields handled.
Password Generator
Cryptographically secure passwords with a crack-time estimate that makes sense of length.
Word Counter
Words, characters, reading time and case conversion — the daily driver for writers.
Our Most Popular Tools
All free, all private, all in your browser — no catch
Image Compressor
Compress images online free with a live quality slider and instant before/after sizes
Image Resizer
Resize images online free to exact pixel dimensions or quick percentages, with aspect-ratio loc…
Image Converter
Convert images between JPG, PNG and WebP online free — quality control for lossy formats, trans…
Image Cropper
Crop images online free by dragging a box on the preview — the cut is applied at full original…
PDF Merge
Merge 2 or more PDF files into one online free — reorder pages first, then combine locally in y…
Images to PDF
Turn JPG and PNG images into one PDF online free
PDF to Image
Convert PDF pages to images online free
PDF Splitter
Split PDFs online free: extract exact page ranges (1-3,5,7-9) into one PDF, or split every page…
CSV ↔ JSON Converter
Convert CSV to JSON and JSON to CSV online free, with proper handling of quoted fields
QR Code Generator
Generate QR codes online free for URLs, text, phone numbers and Wi-Fi
Image Flipper
Flip an image horizontally (mirror) or vertically online — free, instant, and 100% in your brow…
Image Rotator
Rotate an image 90°, 180° or 270° online for free
Black & White Converter
Convert images to black and white, sepia or inverted online — free and private
Add Border to Image
Add a border or frame to any image online — free, instant, no upload
Collage Maker
Make a 2×2 photo collage online from up to 4 images — free, no watermark, no signup
Image Pixelator
Pixelate an image online for free with an adjustable block size — perfect for blurring faces, l…
Round Image Maker
Make a round image online for free — circle crop for profile pictures, or rounded-square corner…
Image Sharpener
Sharpen a soft or slightly blurry image online for free with an adjustable strength slider
PDF Page Rotator
Rotate specific pages of a PDF online — free, instant, 100% in your browser
PDF Page Reorder
Reorder PDF pages online for free: type the new page order (e.g
PDF to Text
Convert PDF to text online for free — extract all text from every page with page markers
Word Counter
Free online word counter for words, characters, sentences, paragraphs, unique words, reading ti…
SERP Preview & Meta Generator
Preview exactly how your page looks in Google
Keyword Density Analyzer
Analyze keyword density and get an SEO score out of 100
Schema Markup Generator
Generate JSON-LD schema for FAQ, Article, Breadcrumb, and Organization — unlock Google rich res…
Sitemap Generator
Paste your URLs and get a ready-to-submit sitemap.xml with lastmod, changefreq, and priority
Robots.txt & OG Generator
Generate a robots.txt with sitemap reference, plus Open Graph and Twitter Card tags for beautif…
Alt Text Checker
Paste your HTML and instantly find missing, too-short, or keyword-weak image alt text
Color Contrast Checker
Check color contrast for WCAG AA and AAA online — free and instant
Slug Generator
Turn any title into a clean, SEO-friendly slug
Epoch Converter
Convert epoch (Unix) timestamps to human-readable dates and back — seconds or milliseconds, UTC…
Case Converter
Convert text case online free: UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_c…
Text to Speech
Convert text to speech online free using your browser voices — no audio uploaded, nothing sent…
BMI Calculator
Free BMI calculator with visual health scale, ideal weight range and tips
Age Calculator
Calculate your exact age in years, months, days, hours and minutes
Password Generator
Generate cryptographically secure passwords with a strength meter and crack-time estimate
Lorem Ipsum Generator
Generate professional lorem ipsum placeholder text — paragraphs, sentences, or words — for your…
Base64 Encoder & Decoder
Encode and decode Base64 instantly — 100% in your browser
Title & Meta Length Checker
Check if your SEO title (30-60 chars) and meta description (120-160 chars) will be truncated in…
Readability Checker
Paste any text and get its Flesch Reading Ease score, grade level, sentence count and words per…
JSON Formatter
Format, minify and validate JSON in your browser
WebP to PNG Converter
Convert WebP images to PNG online free in seconds
Percentage Calculator
Calculate percentages three ways: X% of Y, X is what % of Y, and percentage change from X to Y
Built different, built for you
0ms Latency
No servers, no APIs. Everything runs instantly in browser.
Privacy-First
Your data never leaves device. No tracking, no cookies on content.
Crafted UI
60fps animations, spotlight effects, obsessive attention to detail.
Free Forever
No signup, no paywall, no limits. Minimal respectful ads only.
Frequently asked questions
Are these tools really free?
Yes. All 111 tools are free with no signup and no paywall. The 60 classic tools have no limits; the 51 AI Write tools run on your own AI API key (billed by your provider — free tiers exist). Tools run in your browser. Your files are not uploaded to our servers. We use Google Analytics and Google AdSense to measure traffic and show ads — the details, and how to opt out of analytics, are in the privacy policy.
Does my data ever leave my browser?
No — at least for the part that matters. The files you open and the text you type are never sent to a server, because every tool runs locally in your browser. Like most websites, ToolWow uses basic, anonymized analytics to learn which tools help people most; nothing you process is ever read, stored, or sold.
Who built ToolWow?
ToolWow is built and maintained by Saad, an indie developer based in Faisalabad, Pakistan. He writes the code and the guides himself, and he answers every email sent to saadecommeres@gmail.com.
Why do you publish guides with the tools?
Every tool is paired with an in-depth guide (800–1,200 words) that explains how to use it, why the feature matters, and how to apply it to real projects — because a tool without context gets misused. The guides also help people find the right tool when they search for a task, not a tool name.
Will more tools be added?
Yes. The roadmap currently focuses on more SEO utilities and developer workflow tools. If there is something you need, email us — feature requests directly shape the next batch of tools and guides.
Do I need an account to use the tools?
No. All 111 tools work with zero signup — an account never unlocks or locks anything. The AI Write tools additionally use your own AI key, kept in your browser. Sign-in is optional: it identifies you across sessions and will power upcoming features like cloud drafts. If you sign in, only your email and password are stored, by Netlify's identity service; your tool data stays in your browser.
Tips, guides & workflows
22 in-depth guides (800–2,000+ words each) to help you write faster, stay secure, and work smarter
Why Every Writer Needs a Word Counter in 2026: Complete Guide
From meeting essay requirements to tracking daily goals like Stephen King, discover why word counters are essential for every writer in 2026. Includes SEO tips and productivity hacks.
The Complete Guide to Text Case Conversion: When to Use Each Style
UPPERCASE vs lowercase vs Title Case vs Sentence case — learn the rules, common mistakes, and how case affects readability and SEO.
How to Calculate BMI Correctly: Formula, Categories & Limitations
Understand BMI formula, healthy ranges, why athletes may show overweight, ideal weight calculation, and when to consult a doctor.
Age Calculator: Why Knowing Your Exact Age Matters More Than You Think
From legal documents to medical dosing to fun facts — exact age in years, months, days, hours matters in surprising ways.
Strong Password Generator: How Long Would It Take to Crack Your Password?
8 chars = instant crack, 12 chars = centuries, 16+ = billions years. Learn what makes passwords unbreakable and best security practices.
Why Privacy-First, Browser-Based Tools Are the Future of the Web
In an era where data is oil, browser-based tools that never send your data to servers are faster, safer, and more ethical. Here's why.
How to Write SEO-Friendly Articles Using Word Counters and Readability Tools
Learn how word count, sentence length, and reading time affect Google rankings. Step-by-step SEO writing workflow using free tools.
How to Compress an Image Without Losing Visible Quality (2026 Guide)
Resize first, then choose the format for the image type, then the quality zone where size drops and the eye sees nothing — with the mistakes that actually destroy quality.
How to Merge PDFs Without Uploading Your Files (Privacy-First Method)
What a server merge exposes, how a local merge works instead, the exact steps, and the 30-second verification checklist for important documents.
Tools That Don't Upload Your Files: What "100% In-Browser" Actually Means
Take the claim apart: the browser APIs behind it, the 15-second network-tab test you can run on any site, and the honest limits of local processing.
Meta Description Length: The Exact Character Limits, With Examples
155–160 on desktop, ~120 on mobile — six worked examples (three that work, three that fail) and the Result + Specificity + Ease formula.
Readability Score, Explained: What the Number Actually Means
The Flesch formula written out, the scale mapped to human difficulty, and the two levers — with before-and-after sentences — that raise a low score.
Heading Structure (H1–H6): The Rules for SEO, Accessibility and LLM Answers
One H1, no level skips, keywords in the H1 only — the rules, the reasoning, and why AI summarizers make clean outlines matter more.
What Is Keyword Density? (And Why You Should Stop Obsessing Over It)
The formula, the folklore's origin, what topical coverage replaced it with, and the three ways density is still a useful diagnostic in 2026.
How to Find and Fix Soft 404s (the Error Google Under-Reports)
Why the crawl report misses them, the six-step audit process, and the status-code rules — 404, 410, 301, noindex — for each case.
The 23 Best Free Online Tools of 2026 — All in One Place
Every tool on ToolWow, ranked by use case: what each one is best at and who should reach for it first. Writers, developers, and SEO people covered.
How to Optimize Your Website for Google in 2026: A Practical Checklist
The exact 15-step sequence — foundation, content, technical, and signal — run on every site. No theory, just the working order that moves rankings.
What Is JSON-LD Schema? A Beginner's Guide to Google Rich Results
FAQ snippets, stars, Top Stories — the four schema types most sites need, why anonymous content loses them, and how to add valid JSON-LD in ten minutes.
How to Write Meta Descriptions That Actually Earn Clicks
Meta descriptions don't rank you — they win the click. The 150–160 character rules, the three failure modes, and the Result + Specificity + Ease formula.
Sitemaps Explained: How Search Engines Actually Use Your sitemap.xml
Field by field: loc, lastmod, changefreq, priority. What belongs in a sitemap, the three pre-submission checks, and the classic anchor-fragment mistake.
Base64 Explained for Beginners: What It Is, How It Works & When to Use It
From encoding images in CSS to safely transmitting binary data — Base64 is everywhere. Learn encoding/decoding with practical examples.
Explore more free tools
Every tool is free, private, and runs in your browser.