Free photography tools that run in your browser
Depth of field, crop factor, golden hour planning, image compression, EXIF tools and more. No uploads, no sign-up, no watermarks - everything is calculated locally.
Camera Tools
10 toolsOptics and exposure calculators built on real photographic formulas.
Focal Length Calculator
Work out the relationship between focal length, sensor size and field of view.
Open tool → Camera ToolsCrop Factor Calculator
Find any sensor's crop factor relative to a 35mm full-frame camera.
Open tool → Camera ToolsEquivalent Focal Length Calculator
Convert a lens to its full-frame equivalent - and reverse the maths.
Open tool → Camera ToolsField of View Calculator
See horizontal, vertical and diagonal angles of view for any lens and sensor.
Open tool → Camera ToolsDepth of Field Calculator
Near and far focus limits, total depth and hyperfocal distance for your setup.
Open tool → Camera ToolsHyperfocal Distance Calculator
Find the focus distance that keeps everything sharp from near to infinity.
Open tool → Camera ToolsShutter Speed Calculator
Reciprocal-rule minimum handheld speeds, adjusted for crop and resolution.
Open tool → Camera ToolsExposure Triangle Calculator
Balance aperture, shutter speed and ISO while keeping the exposure equal.
Open tool → Camera ToolsND Filter Calculator
Work out the shutter speed you need with any ND filter, in stops or ND numbers.
Open tool → Camera ToolsFlash Exposure Calculator
Guide-number maths: solve aperture, distance, ISO or flash power.
Open tool →Image Tools
12 toolsEdit and inspect photos privately - everything runs in your browser.
Resize Image
Resize JPG, PNG or WebP by width, height, percentage or longest edge.
Open tool → Image ToolsCompress Image
Shrink JPG, PNG and WebP file size with a quality slider - all in your browser.
Open tool → Image ToolsCrop Image
Crop any image with a draggable frame and preset aspect ratios.
Open tool → Image ToolsRotate Image
Rotate a photo 90° or 180°, or use fine free-angle rotation.
Open tool → Image ToolsFlip Image
Mirror a photo horizontally or vertically in one click.
Open tool → Image ToolsConvert JPG PNG WebP
Change image format between JPG, PNG and WebP without uploading.
Open tool → Image ToolsRemove EXIF
Strip location and camera metadata from a photo, locally in your browser.
Open tool → Image ToolsView EXIF
Read camera, lens, exposure and GPS data stored inside a photo.
Open tool → Image ToolsCheck DPI
Read DPI metadata and estimate print sizes at 72, 150, 240 and 300 PPI.
Open tool → Image ToolsCheck Image Dimensions
Instantly see pixel size, megapixels, aspect ratio, format and file weight.
Open tool → Image ToolsCheck Aspect Ratio
Detect an image's aspect ratio and see how close it is to common formats.
Open tool → Image ToolsChange Aspect Ratio
Convert any image to 1:1, 4:3, 3:2, 16:9 and more - by cropping or padding.
Open tool →Photography Planning
8 toolsPlan shoots around light, sky and long exposures.
Golden Hour Calculator
Find the morning and evening golden-hour windows for any date and place.
Open tool → Photography PlanningBlue Hour Calculator
When the sky turns deep blue - morning and evening blue-hour windows.
Open tool → Photography PlanningSunrise & Sunset Calculator
Sunrise, sunset, solar noon, day length and twilight times for any location.
Open tool → Photography PlanningMoon Phase Calculator
Phase name, illumination and moon age for any date - plus next full and new moon.
Open tool → Photography PlanningMilky Way Planner
A practical estimator for when the galactic core is visible in dark skies.
Open tool → Photography PlanningStar Trail Calculator
Plan an interval capture: total run time, exposure and gaps for star trails.
Open tool → Photography PlanningLong Exposure Calculator
Turn a base shutter speed into the exposure you need for any filter strength.
Open tool → Photography PlanningAstro Exposure Calculator
500/400-rule maximum shutter speeds, plus a pixel-pitch-aware option.
Open tool →Private by design
These tools never upload your photos or personal data. Every image tool processes your files locally in your browser using the Canvas API - nothing is stored on a server and nothing is sent to analytics.