No Registration Web 2.0 Conversion Tools
General Converters
Pick your favorite or what works with what type of file.
  • Cloudconvert: File converter that supports nearly all audio, video, document, e-book, archive, image, spreadsheet, and presentation formats. Speedy work with video noted. Limit of 25 conversions per day.
  • DocsPal Online File Converter: Converts all kind of documents, video, audio, images, e-books and archives and allows viewing in your browser
  • EasyUnitConverter: EasyUnitConverter provides a set of mathematical tools that includes 2000+ units conversion and online calculations. Each tool is developed based on formulas  taken from Wikipedia & Academic books.
  • File-Converter-Online:  Converts over 80 file types, convert multiple files to PDF, and site is carried in 15 different languages
  • Good Calculators: Large number of conversion calculators from science to shoe size. Main site shared under Productivity,
  • Konwerter: Converts documents, images, e-books, and PDFs Deletes your files at conclusion of process.
  • MConverter: Convert files individually or in bulk. Lots of media and document formats supported. Files are deleted 4 hours after uploaded.
  • Online Converter: Free audio, video, image, document, e-book, and hash generator.
Multimedia Converters
  • 123 Apps Converter Tools: Convert audio, video, documents, fonts, images, archives, and ebooks. Make a selection of the converter tools from the drop down menu. 
  • Apowersoft Free Video to MP3 Converter: Video to MP3 converter of online video files or streaming video as well as support for MAC and Windows video.
  • Fileconverto: Convert, compress audio/video/images, remove and extract audio, or softer or increase audio. All capabilities of this tool were tested successfully.
  • i2img: One of Sciweavers tools supporting and converting the following formats: PG, PNG, BMP, GIF, TIFF, PBM, PGM, PPM, WMF, SGI, PDF, EPS, FIG, PS, SVG, RGB
  • Online Audio Converter (123apps): Part of the suite of tools from 123apps. Convert a wide variety of formats, convert multiple files at once and extract audio from video.
  • YouCompress: Reduce the size of videos, PDFs, songs and images. Will compress MP4, MOV, MP3, PDF, PNG, JPG, JPEG, GIF.
OCR Converters
  • i2OCR: Sciweavers' online OCR tool to extract text from images in 60 + languages and allows for unlimited uploads. Extracts text from images so that it can be edited, formatted, indexed, searched, or translated. Example
  • NewOCR: Online OCR service analyzing uploaded or online images for text, recognizes 58 languages, and outputs to a doc, PDF, or txt file. Example
  • OCR Space: Converts scans or (smartphone) images of text documents into editable files and download results as Text. Example
Links updated August 3, 2024