Free online tools in English
Browse the current global Toolmera tool set with matching German, Hindi and Russian versions for the same workflows.
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Each English tool page links directly to the same tool in German, Hindi and Russian.
Currency Converter
Convert supported currencies with stored reference rates.
Percentage Calculator
Choose the percentage question you need and get the result with the formula shown.
Date Calculator
Calculate a future or past calendar date using separate year, month, week and day adjustments.
QR Code Generator
Create a static QR code directly in your browser, customize its appearance and download PNG or SVG output.
Password Generator
Create a random password locally with the character types and length you choose.
PNG to WebP
Turn PNG files into lightweight WebP images without sending them to a server.
JPG to WebP
Reduce image weight by converting JPG photos to the modern WebP format.
Compress JPG
Reduce JPG file size while keeping the output in JPG format and comparing the actual result before download.
Resize Image
Resize images for websites, social media and documents without installing software.
Merge PDF
Combine PDFs into one clean document while keeping the workflow on your device.
Remove Duplicate Lines
Clean keyword lists, URLs, IDs, exports and other line-based text without sending the content to a server.
Length Converter
Convert common metric and imperial length measurements in real time with clear unit labels and quick pair shortcuts.
Speed Converter
Convert common road, aviation, marine and scientific speed units instantly with exact reference factors.
Sitemap Checker
Test a website sitemap.xml file and quickly verify whether search engines can reach a usable XML sitemap or sitemap index.
Website Analyzer
Enter a public URL to run a practical website audit based on live HTML, HTTP headers, crawl files and verifiable technical signals.
Broken Link Checker
Enter a public page URL to inspect the links it exposes and quickly separate healthy destinations from redirects, true 404/410 links and other HTTP errors.
Schema Markup Checker
Inspect the JSON-LD that a public page actually returns before debugging rich-result eligibility or schema implementation issues.
DNS Lookup
Enter a domain to inspect the DNS records that connect it to web servers, mail providers, verification services and authoritative name servers.
Tip Calculator
Enter a bill, choose the tip percentage and number of people, then see the tip, final total and per-person amounts together.
Fraction Calculator
Enter two fractions, choose an operation and get the exact reduced fraction alongside a mixed number and decimal.
WebP to PNG
Convert modern WebP files into widely compatible PNG images.
JPG to PNG
Create lossless PNG files from JPG images directly in your browser.
PNG to JPG
Turn PNG graphics into widely compatible JPG files with a clean white background for transparency.
Compress Image
Shrink image file size while staying in control of output quality.
WebP to JPG
Turn static WebP images into widely compatible JPG files without uploading them to a Toolmera server.
HEIC to JPG
Decode HEIC photos locally, choose JPG or PNG output, and download a browser-readable image file.
Compress PNG
Reduce PNG file size with palette quantization and keep the result as a PNG file.
Crop Image
Draw a crop area on your image, choose an aspect ratio, and export the selected region locally.
Split PDF
Create a new PDF from the exact page range you need.
JPG to PDF
Combine one or many JPG images into a single PDF file.
PNG to PDF
Build a PDF from PNG screenshots, designs or scans without uploading files.
PDF to JPG
Render PDF pages locally as JPG or PNG images, choose page ranges, and export one file or a ZIP bundle.
Rotate PDF
Fix sideways or upside-down PDF pages and download a new file with the rotation saved.
Remove PDF Pages
Enter pages such as 2, 5-9, 12, validate the selection, and create a new PDF without those pages.
Age Calculator
Enter a date of birth and an as-of date to calculate calendar age, total days and the next birthday.
BMI Calculator
Get an adult BMI screening estimate from kg/cm or lb/in measurements.
Compound Interest Calculator
Model how a starting amount can grow with compound interest, regular monthly contributions and different compounding frequencies.
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin in real time, with common reference points and an absolute-zero guard.
Word Counter
Paste or type text to get immediate writing statistics with browser-side analysis.
Case Converter
Transform capitalization and naming styles instantly, then copy the result in one click.
JSON Formatter
Paste JSON to pretty-print or minify it, validate syntax and inspect parse errors without sending the payload to a Toolmera server.
Base64 Encode / Decode
Encode text to standard Base64 or Base64URL, decode UTF-8 text, and keep the operation in your browser.
UUID Generator
Create UUID v4 identifiers locally with native browser cryptographic randomness and practical formatting options.
Random Number Generator
Pick one number or generate a list with custom bounds, precision, uniqueness and sort order.
Unix Timestamp Converter
Convert Unix epoch values to readable dates and turn local or UTC date-time values back into timestamps.
Weight Converter
Convert weight and mass measurements between common metric and imperial units.
Volume Converter
Convert liquid and volume measurements without mixing US customary and UK Imperial definitions.
Area Converter
Convert land and surface area measurements across metric and customary square units.
Data Storage Converter
Convert file and storage sizes without mixing decimal KB/MB/GB with binary KiB/MiB/GiB definitions.
Color Converter
Enter a HEX, RGB or HSL color and convert it into the other common web color formats instantly.
Time Zone Converter
Choose a source time zone, enter a local date and time, then see the same instant in another time zone.
URL Encoder / Decoder
Percent-encode text for a URL component or decode encoded values back into readable text without sending the payload to a server.
Slug Generator
Turn a title or phrase into a compact URL-friendly slug, then copy the result in one click.
JWT Decoder
Paste a JWT to inspect its header and payload locally. Toolmera does not verify the token signature or trust claims on this page.
Character Counter
Measure text length instantly with Unicode-aware character counting and a separate UTF-8 byte count.
Sort Lines
Sort pasted lists, filenames, keywords and identifiers while keeping the entire operation in your browser.
Text Diff Checker
Find line-level changes between drafts, configs, lists or code snippets without uploading the text.
JSON to CSV Converter
Turn API-style JSON into spreadsheet-ready CSV locally, then copy or download the result.
XML Formatter
Paste XML to validate its structure and make nested elements easier to read without a server round trip.
Time Duration Calculator
Measure the exact elapsed duration between a start and end date-time and see the total in multiple units.
Website Traffic Checker
Enter a domain to check its public popularity trend and traffic-level signals without inventing monthly visit counts.
SEO Checker
Audit the SEO signals search engines can verify from a public page response and its crawl-control files.
Meta Tag Checker
Inspect the metadata returned in a page’s raw HTML before changing titles, descriptions, canonicals or social sharing tags.
HTTP Status Checker
Test a public URL to see whether it returns 200, redirects, errors or another HTTP status before debugging crawl and availability problems.
Redirect Checker
Follow a public URL through its redirect chain to find unnecessary hops, outdated destinations and HTTP-to-HTTPS transitions.
Robots.txt Checker
Fetch the robots.txt file for a public website and review whether crawl directives or a site-wide Disallow rule could block search engines.
SSL Checker
Verify the practical HTTPS and transport-security signals visible from a live website response without installing software.
Security Headers Checker
Inspect browser-facing HTTP security headers from a live public response and see which baseline protections are present or missing.
Technology Checker
Scan public HTML and response headers for recognizable technology fingerprints without claiming access to private server configuration.
CAGR Calculator
Measure the annualized growth rate between a beginning value and an ending value over multiple years.
Loan Calculator
Estimate a fixed-rate loan payment and see how principal and interest change across the repayment schedule.
ROI Calculator
Measure total return on investment and compare it with an annualized rate when a holding period is provided.
Discount Calculator
Work out sale prices instantly, including sequential discounts such as 20% off plus an extra 10% off.
Simple Interest Calculator
Calculate non-compounding interest using principal, annual rate and a flexible time period.
Date Difference Calculator
Measure the time between two dates with an optional inclusive end date and weekday-only business-day count.
Average Calculator
Paste a dataset and get a compact statistical summary instantly.