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Developed in part with a grant from
the National Science Foundation

Sarah S.

4 Level 4 Contributor
  • 29 Reviews
  • 0 Helpful Votes
  • 0 Thank Yous

Experience: Computers & Technology, Education

Member since October 2019

  • Reviews

    29

  • First Reviews

    29

  • Thank Yous

    0

  • Fans

    0

  • Profile Views

    59

Review Distribution

29 Reviews by Sarah

5/12/20
This converter will be useful if you need to quickly and free convert AVI videos to MP4 format. To start the conversion, you just need to upload one or several AVI files and click the "Convert" button, in a few seconds you will get ready MP4 videos.
5/6/20
This online calculator will help if you need to quickly calculate the standard deviation, variancem or mean of a given set of values. After the calculation, you will receive a detailed step-by-step solution, which can be easily saved as a PDF file. This calculator is completely free and convenient to use on mobile devices. I advise you if you need to facilitate math calculations!
4/29/20
I like listening to music in good quality and WAV files have very good sound, but unfortunately, they are not supported everywhere. Therefore, this converter helps a lot to quickly convert my .wav files to .mp3 and it is completely free.
4/12/20
This handy online tool will be useful if you need to quickly and free convert MOV video or audio to MP4 format. It has a very easy to use interface that allows you to quickly upload one or more files and convert them in an instant. Another great convenience is that if you converted several files, you can download them in a single zip archive
4/12/20
The WebM format has become very popular lately, as it is often used in html5 and this converter is very useful if you need to change the video extension from .webm to another (for example to .mp4) because not all players and codecs support WebM format.
I very easily and quickly converted several WebM videos with this completely free converter. I was very pleased with the result, because the video quality was not only preserved, but it seems to have become better :)
4/8/20
I am a graphic designer and I often need to convert JPG images to a PNG, because the quality of the PNG is slightly better and now this file format has become popular. This free converter helps me a lot in bulk file conversion and does it very quickly!
3/23/20
Sometimes at work I need to calculate the days between two dates, and this simple and free date calculator helps me a lot in this. There are also several other time calculators, which will also be useful in some cases.
I recommend it to anyone who needs to quickly calculate the time.
3/10/20
I often use Word documents for work and sometimes I need to quickly convert them to pdf format. This website allows you to do this in seconds. It really helps when you don't have much time to download additional programs.
3/1/20
I have been working as a freelancer for a long time and I use this simple time card calculator to calculate my working hours. It is free, and there is also the opportunity to download the results as a PDF document, which is very convenient.
2/20/20
This is a very convenient tool, if you need to divide the pages of a PDF document into separate JPG images, I constantly use this free converter.And by the way, it's free to use.
2/20/20
I constantly work with images and very often I need to convert a large number of jpg images into a single pdf document. This free and easy to use converter helps me a lot with this.
2/19/20
The WebP file format is relatively new and more and more often I need to converting WebP images to the JPG or PNG format. This free and simple converter allows to do this in seconds!
2/4/20
The Limit Calculator allows you to easily find one-sided and two-sided limits as well as limit representations of a given function.After each calculation, you can see a step-by-step solution. This calculator is free and easy to use.
2/4/20
To calculate the problem of double or triple integrals, I use this simple and convenient integral calculator, which always helps me. A large number of tools are available there for convenient calculation.
2/4/20
My son goes to school and I often help him with solving simple mathematical problems and use this cool fraction calculator to calculate fractions from any numbers, you just need to type in the problem and after a few seconds you will get a solution.
2/4/20
This calculator allows you to solve any algebra problem, for example, if you need to calculate a fraction or trigonometric problems.
2/4/20
This simple derivative calculator always helps me while studying, I use it on my phone to calculate the derivative of different functions.
1/18/20
I constantly work with PDF documents and very often I need to convert it to a PNG image. This website helps a lot with this, it is free to use and does not require software installation.
1/18/20
Sometimes I need to convert jpg files to png and this website helps a lot with this. I just need to upload a jpg picture and after a few seconds I get a png image.
1/11/20
Sometimes I need to calculate the percentage for different purposes and I use this percentage calculator. There is an easy-to-use interface and convenient copying of calculation results.

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