27 Oct 25
All-in-one online, free, browser-based toolkit for geographic data analysis. It offers: - Interactive Map Tools: Measure distances and areas directly on the map. - Data Format Converters: Convert between TopoJSON and GeoJSON formats seamlessly. - Coordinate Utilities: Perform conversions and other coordinate-based operations.
No sign-up required, and all tools run client-side for privacy and speed.
Built with open standards and designed for developers, educators, and anyone interested in geographic data.
11 Apr 23
Pandoc is a universal document converter.
It can “read markdown and (subsets of) reStructuredText, textile, HTML, and LaTeX, and it can write plain text, markdown, reStructuredText, HTML, LaTeX, ConTeXt, PDF, RTF, DocBook XML, OpenDocument XML, ODT, GNU Texinfo, MediaWiki markup, textile, groff man pages, Emacs org-mode, EPUB ebooks, and S5 and Slidy HTML slide shows. PDF output (via LaTeX) is also supported with the included markdown2pdf wrapper script.”
22 Feb 23
11 Jan 23
19 Jan 22
A simple, intuitive web app for analysing and decoding data without having to deal with complex tools or programming languages.
14 Feb 17
10 Jul 15
K2pdfopt optimizes PDF/DJVU files for mobile e-readers (e.g. the Kindle) and smartphones. It works well on multi-column PDF/DJVU files and can re-flow text even on scanned PDF files. It can also be used as a general PDF copying/cropping/re-sizing/OCR-ing manipulation tool. It can generate native or bitmapped PDF output, with an optional OCR layer. There are downloads for MS Windows, Mac OSX, and Linux. The MS Windows version has an integrated GUI.
11 Aug 14
07 Jul 14
01 Nov 13
Convert media files online from one format into another.
07 Oct 13
Convert your files to various ebook formats, including industry standard ePub. Right in your browser you can easily convert PDF to ePub, DOC to ePub, MOBI, LIT, LRF to ePub and many more. 2EPUB is 100% free online ebook converter.
Input formats: doc, docx, epub, fb2, html, lit, lrf, mobi, odt, pdb, pdf, prc, rtf, txt.
Output formats: epub, fb2, lit, lrf, mobi
Convert your PDF files, ebooks from other readers or just plain text to the ePub format. This format is known by most ebook readers. Upload a file or provide a URL and click on “Convert file”. Optionally you can select the target reader to allow our ebook converter a better accuracy.
19 Dec 11
YouTube-mp3.org is the easiest online service for converting videos to mp3.
05 Dec 11
I will convert your Excel data into one of several web-friendly formats, including HTML, JSON and XML.
23 Oct 11
A simple remux/recode app based on FFmpeg
Features: Change container without reencoding Select, rearrange and duplicate tracks Convert DTS to AC3 for e.g. AppleTV or PS3
06 Jun 11
Pandoc is a universal document converter.
It can “read markdown and (subsets of) reStructuredText, textile, HTML, and LaTeX, and it can write plain text, markdown, reStructuredText, HTML, LaTeX, ConTeXt, PDF, RTF, DocBook XML, OpenDocument XML, ODT, GNU Texinfo, MediaWiki markup, textile, groff man pages, Emacs org-mode, EPUB ebooks, and S5 and Slidy HTML slide shows. PDF output (via LaTeX) is also supported with the included markdown2pdf wrapper script.”