Download FastRawViewer (beta)

FastRawViewer 0.9.5 Beta

If you already know what version of FastRawViewer you need, please download now. If unsure, please see below for the explanations how to choose the right version of FastRawViewer for your specific hardware and operational system, with links to downloads.

Download links

Mac OS X

Windows 7 - 8.1


User manual

There is a single manual for both Windows and Mac OS X versions (it comes with the installation, too)

How to choose the proper version of FRV

Mac OS X

FastRawViewer for Mac OS X requires any Intel-based Mac (excluding Mac Mini 2005) with Mac OS X 10.6+ installed. We recommend a video card with OpenGL 2.1 support (that's every native Mac video card that works with OS X 10.6). An OpenGL emulator will be used if such a video card is not present in the system; some of the advanced features of FastRawViewer will take significant time to render without hardware support for OpenGL.

Download link


FastRawViewer for Windows requires a computer with SSE3-compatible CPU (that is, manufactured after 2004) and not-so-ancient video card. It works on a variety of 32/64 bit Windows platforms: XP, Vista, 7, 8, 8.1 (we suggest Windows 7 or 8.1/64-bit).

FastRawViewer for Windows is available in 2 versions:

  • Graphics based on OpenGL – requires a video card with at least OpenGL 2.1 support.
  • Graphics based on Microsoft DirectX – this version will work with any video card that supports DirectX 9.0 and higher (DirectX 9.0c support or later is recommended). The installer will check your DirectX version and offer upgrade if needed.

If your video card is one of the recent (either a discrete one, manufactured after 2006, or a dedicated one, integrated with the AMD/Intel CPU) we suggest to use OpenGL version of FastRawViewer. DirectX version is for older video cards (pre-2006 discrete ones and Intel chipset based). Please see the graphics card compatibility chart, where we list models and names of the chipsets and appropriate FastRawViewer versions.

Download links

Windows 7 - Windows 10

Legacy Version (Windows XP - Windows Vista)

If you are experiencing sluggish behavior, or any graphic issues, updating video drivers may be very helpful. In fact, we suggest to keep your video drivers up-to-date in any case.

Some links to help detecting which card you have in your system:


FastRawViewer 0.9.5

New features and major changes

  • New setting Image Display - Under/Overexposure layer opacity Allows to change the brightness of OE/UE highlighting.
  • New control button in XMP Rating/Label window: Move to next file after Rating/Label/Any is set.
  • Usage Tips: the answers to most frequent questions. Those are displayed at program start, can be switched off through a checkbox in Tips window and activated using Help - Usage Tips.
  • If the program is started without parameters, the splash screen is displayed; this can be switched off using Preferences - Other - Disable splash screen
  • New setting Interface - Zoom step (for shortcut):
    • Large (as in previous versions) - about 50% (fixed enlargement scale)
    • Medium - 20%
    • Small - 5%

    These settings are intended to be used when zooming is controlled through mouse wheel or trackpad. The setting affects zooming shortcut only (keyboard/mouse/trackpad zoom controls); while zoom-in and zoom-out using bottom bar buttons is always using the Large steps with fixed scale.

  • New setting Interface - Ignore successive wheel events for NNN msec (by default, 0 msec for Windows, 200msec for OS X) This setting allows to fine-tune the behavior of Magic Mouse and trackpad, which, on OS X, tend to send too many fine-grained events.
  • OS X: Shift+Wheel zoom shortcut is off by default.
  • New group of settings Image Display - Use embedded color data for Controls the use of color matrices embedded in raw files:
    • DNG (default: Off; FRV color profiles are used instead)
    • Raw files coming from Leaf è Phase One cameras/digital backs (default: On)
    • Other raw files that contain color matrices: default: Off
  • New action 'Return from Fullscreen'; default: assigned to Esc key.

Installation and file type association

  • FastRawViewer adds itself to 'Open With' list for the supported file types / extensions.
  • FastRawViewer adds itself to Folder right click menu.
  • During the installation the user can set the checkmark to add FastRawViewer to Desktop right-click menu.
  • The button Preferences - Other - Manage file associations starts the system file association dialogue. (this button is absent in Legacy version)

Upon the first start of FastRawViewer it will be added to the OpenWith list for the extensions, supported in FastRawViewer (this list appears if Control-click (right-click) is pressed while in Finder)

New camera support

Panasonic DMC-GM5

Leaf Credo 50

Bugs fixed

  • For some raw files with very flat but not overexposed highlights the OE indication was triggered.
  • If a DNG file contained only ColorMatrix1 the setting of color temperature through CCT/Tint was not working.
  • (OS X) If the start mode was set to 'Last Opened file' but the start was triggered by dropping a different file onto the program icon the file opened was the last one instead the one that was dropped.
  • Zoom anchor at mouse cursor was not working for "100% zoom" (even if "100% zoom" was assigned to mouse)
  • The window title was not changed when switching between RAW and JPEG
  • If the last browsed folder was deleted or moved, the program, if started without pointing to a file/folder, switched to browsing through %HOME%/Pictures (if it exists) or %HOME%, instead of program folder.

FastRawViewer 0.9.4

New features and major changes

The EXIF data display is now customizable

Press the "Settings" icon at the top of the EXIF window and change the opacity and the list of displayed EXIF fields as you see fit

The program's status bar (the one that is below the image display window) has been completely reworked
  • All visual elements for which it makes sense are now clickable
  • You can tune which elements are always there, which are there only when there is enough space to accomodate them, and which are currently switched off
  • New elements have been added: Current Folder, Contrast Curve selection, XMP Rating, and XMP Label
Color Management Support

Color Management can be turned on through: Preferences - Color Management - Enable Color Management

With this, additional settings are made available.

Color Conversion (to the monitor space) is performed on the video card; in most cases the speed of the program is not affected.


  • Color Management is incompatible with DirectX Shader Model older than 3.0; on such video cards, it cannot be turned on.
  • Color Management is incompatible with "anisotropic texture filtering (for all programs)" being manually turned on. If this type of filtering is found, a warning will pop up.
Simultaneous opening of several folders

This mode is intended for skimming through several "folders at the same level", for instance in the case where the camera records shots in numbered sub-folders, which are then moved to the computer (as is, without flattening the folder structure).

If necessary, folders on different levels/discs/wherever can be opened through Drag-n-Drop; the built-in FRV dialog by itself does not allow this liberty.

This is, specifically, a crutch; this mode does not replace automatic recursion through catalog, but covers one important and widespread Use Case

  • New File Handling Setting - Open Multiple Folders support (turned off by default)
  • This mode is indicated by a star on the "file number in current catalog" button.
  • When flipping Next File, if you have reached the last file in the folder, the current folder is stored at the top of the list of "previous folders" and the program proceeds to the first folder taken from the list of "next folders"
  • When flipping Prev File, if you had earlier moved to the "next" folder, you can return to the last of the "previous folders"
  • Putting back files moved to _Rejected within the program is now only possible until you have not changed folders; if, however, you changed the folder, you can use any file manager to put the files back.

Major Changes

The logic of XMP processing has been changed
  • XMP files are not created for JPEG files
  • New XMP setting - Read Only XMP:

    ratings, marks, exposure settings are read, changing ratings/marks is forbidden, changes in exposure and white balance are not          saved to XMP. Also, exposure and white balance are read from XMP (if they are present).
  • New XMP setting - Use XMP Reject Rating (turned off by default).

    Automatically turns on when turning on the 'Adobe Bridge' mark mode, as it is the only program that supports XMP Reject
Automatic "FRV/Adobe exposure offset" compensation has been implemented for a large number of cameras (400+)

New Setting "Use built-in Adobe/FRV exposure difference data when possible" (standard value - turned on).

Mac: digital signature is compatible with OS 10.9.5 and 10.10, the system should not complain now.
Windows: distributive build method has been changed. Now:
  • Standard 32-bit version is compatible with Windows Vista - Widows 10, and does not require DirectX updates if the installed version is DX9
  • Standard 64-bit version is compatible with Windows 7 - Windows 10 and does not require DirectX updates
  • For users of Windows XP (and 64-bit Vista), a legacy version is being built, compatible with this (and newer) systems

New Camera Support

Canon: 7D Mark II, SX60 HS, G7 X

Fujifilm X30

Kodak S-1

Leica D-Lux (Typ 109), V-Lux (Typ 114)

Nikon D750

Panasonic DMC-LC100


Minor Changes

  • The separate window with keyboard help has been eliminated. Instead of it, F1 opens a browser with all current shortcut settings. Can be printed.
  • New settings

    Other - Downscale JPEGs larger than NN Mpix

    Other - Do not Decode RAW files larger than NN Mpix

    Intended, primarily, for users of the 32-bit version. Better that a downsampled JPEG is displayed, than the program panic that it is running out of memory.

    Defaults are reasonable: 16/40Mpix for 32-bit version, 64/100Mpix for 64-bit.
  • (Windows) When starting up the 32-bit version on a 64-bit system, once a week the version will offer upgrading to a 64-bit version.
  • New Interface setting - Zoom anchor at mouse cursor

    Takes into account the position of the mouse cursor when zooming: the point which the mouse is on while zooming stays under the cursor.

    The setting is on by default.
  • New option for frequency of update checks: Never :)
  • New setting "Remember maximized window state": off by default
  • New Interface setting - "Always show OE+Corr column in statistics window"

    Does exactly what it says.

    Intended for the case when you are rapidly looking through statistics for a large number of files; the table stops jittering, changing size, and you can compare easier and faster.
  • New contrast (tone) curves High Contrast and Ultra Contrast
  • The possibility of setting the exposure change step to 1/12EV has been added
  • Updated color profiles for a large number of cameras.
  • The status bar always differs from the main window in brightness.

Fixed Bugs

  • When changing XMP Label styles, the names of the menu items did not change.
  • The quantity of the simultaneous processes of RAW decoding is always set less than the size of the decoded RAW cache.
  • When using Zoom+Pan, if moving the cursor outside the borders of the image window and releasing the mouse button, a context window with visibility choices for Dock Area windows would pop up. Does not happen anymore.
  • When turning on the "Restore View settings on start" settings, the Focus Peaking modes would not be restored.
  • The lower part of the histogram was not seen when showing the histogram in the floating window.
  • Changing the settings does not cause the display of an XMP ratings window
  • If changing the settings required re-opening the current file, then the currently displayed representation is used (one of raw-intJpeg-extJpeg)
  • Faster program start in several cases: update check does not configure the proxy setting during the program start.
  • The Startup Folder and Display Profile values set by the user are not lost when  Reset Prefs to defaults is pressed.
  • The message about the impossibility of compilation of all shaders has been fixed; the program no longer crashes here.
  • The order of inner actions during start-up has been changed. Now the situation that, when a file (passed, perhaps, through the commandline) is already loaded and an attempt is made to display it while the graphic subsystem is not ready yet, is no longer possible.
  • In the dialogues to select file by number and for manual white balance entry were closed by pressing Escape, the action "Hide All windows" has been disabled.

FastRawViewer 0.9.3

New features and major changes

XMP and other metadata
  • Saving of .rpps-files is now supported (.rpps files are settings for RawPhotoProcessor). New settings :
    • Preferences - Other - Write RPPS files - saves an .rpps file if manual changes of WB/exposure are applied to the image
    • Preferences - Other - Force RPPS files creation - saves an .rpps file with automatic settings for WB/Exposure when a RAW file is opened.

      If a RAW file is moved to a different folder the respective .rpps file is also moved to the same folder.

      To use the .rpps files created in FastRawViewer in RawPhotoProcessor, you need to use the dialogue Import Multiple settings from Menu - Settings. In the dialogue, choose all files in the folder (RAW and .rpps), and the contents of the .rpps-files will be recorded into RPP's History.
  • New setting: XMP - Adobe process version for newly created XMP files. Default: 2012, can be set to 2010 or 2003. Features:
    • If the tag crs:ProcessVersion is set already in XMP file, the version doesn't change and the exposure is written according to the version.
    • If the ProcessVersion tag isn't present in XMP file, then it's added in accordance to the setting (this way, XMP-files created in older versions of FRV and then not changed by ACR/LR will be "upgraded");
    • For 2012 process, Exposure2012 (equal to expo correction in FRV plus Adobe Shift) and the tags Contrast2012, Whites2012, Blacks2012 (set to 0, if these tags are not present in the file) are recorded;
    • For the 2003/2010 processes the tags crs:Exposure, crs:Brightness, and crs:Contrast are recorded (if the file already had the values for those tags, they are preserved, otherwise they are set to 0).
  • New checkmark in the XMP Rating/Label window: Move to next file after Rating is set.

    Does what is written - if the checkmark is checked, then after setting XMP Rating (button in the XMP window, Label menu, hotkeys) FRV browsers to the next file. The behavior of increasing/decreasing the rating (menu, hotkeys) has stayed the same: when using these actions browsing to the next file doesn't happen .
  • New setting XMP - Write photoshop:Urgency tag with color labels (for PhaseOne C1)

    Turns on the recording of the XMP-tag photoshop:Urgency, which is used by CaptureOne to set color labels.

    The setting is activated only if the mode XMP labels is set in 'Color Labels' (this is the default). In other modes, the XMP Labels photoshop:Urgency tag is not modified: if it was in the XMP file, it stays unchanged.
FRV Start/Shutdown
  • New setting in File Handling - Start without filename:In the case of FRV being started up over a particulare file (through any method: drag-n-drop on the icon, clicking on the file, associated with FRV), this setting is, of course, ignored.

    This setting is also ignored in the Single instance mode, if the second FRV copy is started up without selecting the name of a file/folder, then nothing happens.

    • Empty Screen - FRV starts up "without file".
    • Last opened file - opens the top (last) file from the Recent Files list
    • Last visited folder - opens the folder from the list of Recent Folders (from this folder opens either the first file, corresponding to the current file sorting settings, or the last opened, if the 'Remember last opened file in folder' is set)
    • Specified folder - allows you to set a "start folder".
  • New setting Image Display - Restore last View settings on program start

    When closing the program the following image display parameters are saved (independent of the status of the settings):
    • Display mode (RGB, per-channel, BW Conversion)
    • Focus Peaking mode
    • Boost Shadows mode
    • Exposure correction on/off
    • Over/Underexposure display mode

    If 'Restore last View settings' is turned on, then during the next start-up of the program, the above-listed parameters will be in effect.

Browsing files
  • New setting File Handling - File sort order,

    it sets the order of file selection when browsing through the files.

    • Filename, alphabetical - by filename, in alphabetical order, without accounting for letter case, accounting the current localization settings (like with previous FRV versions)
    • Filename, reversed - the order is opposite to the previous.
    • Modification time, newest to oldest - sorts the files by date of creation/last modification of the files, new files in the top of the list
    • Modification time, oldest to newest - the order is opposite to the previous.
    • File type (extension) - files are sorted by extension, files with the same extension are sorted alphabetically.
  • Added Image Display - Auto exposure limit to effective NNN ISO setting.

    The point of it is that the limit of automatic (positive) exposure correction depends on the sensitivity at which the current photo was taken. For instance, if the current file was taken at ISO400, and the auto limit is at 6400 (default value), then the auto-exposure will not brighten the image by more than (6400/400 =) 16 times, or 4 EV.

Small changes

  • Manual exposure adjustment: When manually changing the exposure, rounding occurs to the nearest value that is a multiple of the 'Manual exposure step'.
  • The 'group RAW+JPEG', 'Ignore internal JPEGs', and 'Default image to Display' settings are moved to the separate RAW+JPEG Preferences tab
  • When displaying a single JPEG or RAW file for the cameras where RAW display is not supported, the "current expo correction" field is blank.
  • If for some reason EXIF data cannot be extracted from the RAW file, an attempt is made to extract it from the EXIF data from the embedded JPEG preview.
  • Windows: When using the 'Single Program Instance' the copy of the program which is launched to display the file activates its own window (it is shown on top of other programs and becomes and active application).
  • Statistics table: underexposure statistic is now to the left, overexposure to the right, like it is on the histogram.
  • Windows/DX9: If it works, Windows/DX9 version leaves the record in the Registry confirming that it actually works. Starting with the next version of FRV, the installer will check for the presence of this record, and will not suggest to update DX9 if the record is there.
  • XMP Setting - Write Compact XMP is deleted (the problem that it was meant to solve is of a different nature).
  • Work with formats, for which RAW display is not supported (Foveon): Embedded JPEG 'is displayed instead of RAW'. As a result: - The 'ignore internal JPEGs' and 'do not show internal JPEG if external JPEG is present' settings are ignored - In the RAW+JPEG mode and when an external JPEG is present, the command JPEG rotate causes a change to 'embedded JPEG'

Bugs Fixed

  • Bug fixed: after sleep/awake, the Focus Peaking mode was not restored.
  • "Pink highlights" display has been improved for cameras, which have a true maximum lower than stated (Canon, some copies of Blackmagic)
  • Bug fixed: when moving the last file in a folder to _Rejected, the list of rejected files was cleared, and then irretrievable.
  • Bug fixed: when Preferences were reset the setting for the external program #2 was lost.


  • Bug fixed: If a DNG-files uses a tonal curve, and the DefaultCrop area was selected, the curve would not be applied outside the borders of the Default Crop Area.
  • Old Sony camera display fixed (blown out highlights don't have magenta cast)
  • Exposure EXIF-data: when the file has the ShutterSpeedValue and ExposureTime tags, preference is given to the second (it contains more familier rounding of the values)
  • A series of bugs in the interpretation of DNG-files that come from Adobe DNG Convertor have been fixed (Has to do with, mainly, very old cameras).
  • New Camera Support
    • Casio EX-100
    • Hasselblad H5D, HV
    • Nikon D810, 1 J4,1 S2
    • Olympus E-PL7
    • Panasonic DMC-FZ1000, AG-GH4
    • Pentax 645Z
    • Samsung NX3000
    • Sigma dp2 Quattro (FRV only shows the embedded JPEG, like for all Sigma cameras)
    • Sony A7S, RX100-III, A5100

FastRawViewer 0.9.2

  • Windows/32 bit: 'Remember last opened file in folder' setting works now.
  • Updates check:
  • the update date was recorded only if the the update notification was received.
  • with the 'Updates check frequency: On program start' enabled the updates are checked no more than once in 6 hours.

FastRawViewer 0.9.1

  • Defaults for RAW decode threads: no more than 6 threads for a 32-bit system, no more than 8 for a 64-bit
  • New setting: XMP->Write 'compact' XMP format (default is off):
  • if the setting is on, FRV will write XMP in compact Adobe Format (e.g. xmp:Rating="1");
  • if the setting is off, full XMP format will be used (e.g. 1).
  • New setting: Interface - Hide bottom window bar when hiding information windows.
  • Complex setting with complex behaviour 'Start in full screen if ....' replaced by simple 'Interface-Start in full-screen'.
  • Improved white balance for some cameras.
  • Camera support: added Samsung NX mini and Sony ILCE-3000 (A3000)
  • Bugs fixed:
  • Correct orientation for JPEGs without EXIF Orientation tag.
  • Fixed image selection method for unsupported RAW (Sigma) having an external JPEG by the side
  • Fixed RAW+JPEG handling: .JPEG files do not join with .JPG files
  • Floating point XMP:Rating values are accepted (and converted to nearest integer)
  • Improved XMP files reading stability
  • If window resized in fit-to-scren mode, zoom ratio is changed to keep fit-to-screen
  • In some rare cases image position changes when switching from raw to jpeg and back
  • Mac: fixed program crash on first start caused by closing 'external programs found' report using Wacom stylus.