ZapTools
Free Online Tools That Work Instantly
Currency converter, scientific calculator, OCR, image tools, SEO checker & more — 100% free, no signup, everything runs privately in your browser.
💱 Currency Converter
Live exchange rates updated daily. Convert between 160+ world currencies.
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All Free Tools
Fifty powerful utilities. Click any tool to start using it immediately — no account needed.
Finance Tools
Currency Converter
Live rates for 160+ currencies with instant conversion.
🏦Loan / EMI Calculator
Monthly payments, total interest and payoff estimates.
🧾Tip Calculator
Tips, totals and bill splitting between friends.
🏷️Discount Calculator
Sale prices and savings for any discount %.
📈Compound Interest
Project savings growth with contributions.
💼Salary Converter
Convert annual, monthly, weekly and hourly pay.
⛽Fuel Cost Calculator
Estimate trip fuel costs from MPG and prices.
Calculators
Scientific Calculator
Full scientific functions with keyboard support.
🎂Age Calculator
Exact age in years, months, days and total days.
⚖️BMI Calculator
Body Mass Index with healthy-weight categories.
％Percentage Calculator
X% of Y, percent change and reverse %.
🎓GPA Calculator
Semester GPA from courses, grades and credits.
📏Unit Converter
Length, weight and temperature conversions.
🍳Cooking Converter
Cups, grams, ml and oz with ingredient densities.
Text Tools
Word Counter
Words, characters, sentences and reading time.
🔡Text Case Converter
UPPER, lower, Title Case and more.
✨Fancy Text Generator
Stylish Unicode fonts for bios and captions.
🔊Text to Speech
Hear any text read aloud with natural voices.
🔄Reverse Text
Flip text backwards or upside-down.
🧹Remove Duplicate Lines
Dedupe lists keeping first occurrences.
🔤Sort Lines A–Z
Alphabetical, length sort and shuffle.
📝Lorem Ipsum Generator
Placeholder text for designs and mockups.
📷Image to Text (OCR)
Extract text from photos and screenshots.
🎨Text to Image Maker
Stylish quote images to download as PNG.
📑Text Summarizer & Rewriter
Summarize, simplify and polish any text.
🎙️Audio to Text
Live voice transcription from your mic.
Image & Video Tools
Image Converter
Convert PNG, JPG, WebP — resize and compress.
🎵Video to Audio
Extract MP3 audio from video files privately.
📺YouTube Thumbnail Viewer
Preview any video's thumbnails in all qualities.
💰YouTube Monetization Checker
Channel stats and YPP eligibility for 2026.
⬛QR Code Generator
Custom QR codes with PNG download.
🎨Color Picker & Converter
HEX, RGB and HSL codes with live preview.
🌈Palette Generator
Harmonious color schemes, click to copy.
✂️Background Remover
Erase photo backgrounds with AI, in-browser.
🗜️Image Compressor
Shrink JPG, PNG, WebP — keep quality.
📹Video Compressor
Shrink MP4 size with adjustable quality.
🎞️Video to GIF Maker
Trim clips into GIFs — no watermark.
📈YouTube SEO Tools
Tags, title analyzer & hashtag suggester.
Developer Tools
JSON Formatter
Validate, beautify and minify JSON.
🔐Base64 Encoder
Encode and decode Base64 text instantly.
🔗URL Encoder
Percent-encode URLs for safe query strings.
🛡️Hash Generator
SHA-256, SHA-1 and SHA-512 hashes.
🔢Base Converter
Binary, octal, decimal and hexadecimal.
🏛️Roman Numerals
Convert numbers to/from Roman numerals.
🚀SEO Checker
Audit any page: title, meta, headings, score.
🔑Password Generator
Strong random passwords with strength meter.
📁File Converter
TXT, CSV, JSON, DOCX & ZIP — all-in-one.
📕PDF Tools
Merge PDFs, images to PDF, extract text.
Time & Date
Stopwatch
Precise stopwatch with lap times.
⏳Countdown Timer
Countdown with alarm sound on finish.
🌍World Clock
Live time in major world cities.
📅Date Duration
Days, weeks and months between dates.
Random & Fun
Random Number Generator
Fair random numbers in any range.
🎯Dice Roller
D4–D20 with modifiers and history.
🪙Coin Flip
Heads or tails with streak stats.
Device & Utilities
🚀 Built a Free Tool?
Get it listed on ZapTools — free forever, with a quality backlink to your site and traffic from thousands of tool users.
Submit Your Tool — It's FreeWhy Use ZapTools?
ZapTools is a collection of free online utilities built for speed and privacy. Unlike many tool sites, everything runs entirely in your browser — your files are never uploaded to a server, so image conversion, OCR and video-to-audio extraction stay private and instant.
What you can do here
- Convert currencies with live daily exchange rates for over 160 world currencies.
- Calculate anything with a full scientific calculator that supports keyboard input.
- Extract text from images using OCR — perfect for screenshots, receipts and scanned documents.
- Create shareable graphics from text with gradient backgrounds and one-click PNG download.
- Pull audio from video files and save it as MP3 without installing software.
- Convert and resize images between PNG, JPEG and WebP formats.
- Preview YouTube thumbnails in every available resolution from any video link.
- Audit website SEO — check titles, meta descriptions, headings and image alt text with an instant score.
Built for 2026
Every tool is mobile-friendly, loads fast, and works offline-capable where possible. New tools are added regularly based on what users search for most.
Frequently Asked Questions
Are ZapTools really free?
Yes. Every tool on ZapTools is 100% free with no signup, no watermarks and no usage limits for normal use.
Do my files get uploaded to a server?
No. All tools run entirely in your browser using JavaScript. Your images and videos never leave your device.
Which tools does ZapTools offer?
Currency converter, scientific calculator, image-to-text OCR, text-to-image generator, video-to-audio extractor, image format converter, YouTube thumbnail viewer and a website SEO checker.
Do the tools work on mobile?
Yes. Every tool is fully responsive and works on phones, tablets and desktops.