Has A Digital Image Been Altered / Manipulated / Photoshopped / AI Created
Remove Image Background - maybe useful to use with reverse image searching
Remove An Item / Watermark From An Image
Free Online Image Editors - consider Cropping an image, making it Sharper or Clearer, changing it into Black & White or using the Mirror or Flip The Horizontal function to add to the reverse image searching options
Enhancing Images (free but you may need to sign in to access)
Image File Compressor sites
Find An Image From A Camera Serial Number
Pass Photos Via A Secure & Private Hosting Site
Identify What Make Of Camera Took An Image Via Its Filename
Thanks to The SEINT on Twitter for this information.
CIMGXXXX - Casio
DSC_XXXX - Nikon / Sony smartphone
DSCXXXXX - Sony camera / SonyEricsson phone
DSCFXXXX - Fuji
DSCNXXXX - Nikon
HPIMXXXX - HP
IMG_XXXX - Canon / iPhone
IMGPXXXX - Pentax
P101XXXX - Olympus / Panasonic (the 101 can be an MDD format date, up to c31, where month is in hex)
SVI_XXXX - Sound Vision
Obviously the filename can be very easily be altered, so this can only ever be an indication of the maker of the camera used to take an image