Tools

Free Tools Directory

145+ tools.
Every task. One place.

Search, filter, and find exactly the tool you need. Every tool runs directly in your browser. No Signup, No Tracking, No Waiting.

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30Developer Tools
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15+Text & Image Tools
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15+Security & Network
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15File & Document Tools
About ConvertNow

Free Online Tools That Actually Work

ConvertNow is a growing collection of 145+ free online tools built for developers, students, designers, marketers, and anyone who needs a quick answer without opening a full application. Every tool loads directly in your browser and most give you a result as you type. There is nothing to install and no account to create first.

The tools are organised into 12 categories covering the tasks people run into most often. Developer Tools handle data formatting and conversion work like JSON, XML, YAML, SQL, Base64, and Regex, along with generators for UUIDs, passwords, and Docker Compose files. Unit Converters cover temperature, length, weight, speed, volume, energy, and a dozen other physical and scientific units. The Finance category includes calculators for GST, EMI, SIP returns, compound interest, inflation, and salary conversions. Text and Content tools help with word counting, case conversion, text diffing, readability scoring, and duplicate line removal.

The Image and Design section offers colour picking, palette extraction, gradient generation, barcode and QR code creation, and image compression. Date and Time tools handle age calculation, timezone conversion, date difference, working day counts, and Unix timestamp conversion. Health and Fitness calculators cover BMI, TDEE, BMR, macros, and daily water intake. The Math and Numbers section includes a scientific calculator, percentage tool, binary and hex converters, a statistics calculator, and a few number theory tools like GCD, LCM, and prime factorization.

For file work, the File and Document category converts between image formats, PDF, Word, and Excel. SEO and Marketing tools generate meta tags, robots.txt files, and UTM tracking parameters. Security tools cover password generation and strength checking, HMAC signatures, and a GDPR privacy policy generator. Network tools run DNS lookups, SSL certificate checks, ping tests, and port checks against a domain or IP address you provide.

How to use any tool

  • Pick a category from the tab strip or search by name
  • Click any live tool card to open it instantly
  • Paste or type your input and get the result immediately
  • Copy the output or download the file directly from the tool

Why ConvertNow

  • Everything is free with no usage limits or paywalls
  • Most tools run fully in your browser, so your input stays on your device
  • Works on any device without installing anything
  • New tools are added regularly across every category

Have a tool you need that is not listed yet? Use the contact page to suggest it and we will take a look.

Frequently Asked Questions

Everything you need to know about our free online tools

Yes, every tool on ConvertNow is 100% free to use. There are no hidden charges, no premium tiers, and no sign up required. We currently have 145+ tools live, and most of them run entirely in your browser.
No account, no email, no login. Open any tool and start using it right away. We believe free tools should be genuinely free, not gated behind registration forms.
For most tools, including every formatter, converter, and calculator, all processing happens locally in your browser. Text you paste in, whether it is code, JSON, or a document, never leaves your device. A small group of network tools, such as DNS lookup, SSL certificate checks, ping, and port checks, do need to contact a server, since a browser cannot run those checks on its own. In those cases we only send the domain or IP address you typed in, and we do not log or store it afterward.
We currently cover 12 categories with 145+ live tools. Developer Tools include a JSON formatter, Base64 encoder, Regex tester, and UUID generator. Unit Converters handle temperature, length, and weight among others. Finance calculators cover GST, EMI, and compound interest. Text and Content tools include a word counter, case converter, and diff tool. Image and Design tools include a colour picker, gradient generator, and image compressor. Date and Time calculators cover age, timezone, and working days. Security and Network tools include a password generator, DNS lookup, and SSL checker. Health and Fitness calculators cover BMI and TDEE. Math and Numbers has a scientific calculator and several number base converters. SEO and Marketing tools generate meta tags and robots.txt files. File and Document converters handle images, PDFs, and Word files. And we are gradually adding AI powered tools, starting with a title generator.
Use our free JSON to CSV Converter. Paste your JSON array into the input field and the tool instantly converts it into a downloadable CSV file. No installation needed, it runs entirely in your browser.
Yes. Every tool on ConvertNow is fully responsive and works on any device, whether that is a desktop, tablet, or phone. No app to download, just open your browser and go.
The most popular developer tools on ConvertNow are the JSON Formatter and Validator, Regex Tester, Base64 Encoder and Decoder, UUID Generator, and Hash Generator. All of them handle large inputs instantly and run locally in the browser, so there are no rate limits to worry about.
Yes. We ship new tools regularly across every category. If there is a tool you need that we do not have yet, let us know through the contact page.
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