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Is there a ext3 defragmenter?

There's plenty of threads on here about Defrag for Ext3 and Ext4 and largely it seems E4Defrag is the most reliable new way to defrag in Linux.

But, there is no mention of whether e4defrag is backward compatible with Ext3 and can support / optimize it? e3defrag(8)

If not, what is the reliable stable method today in 2017?

(Most of the previous threads are dated 2010/ 11 and that is half a decade in fast moving tech time frames)

PS: Yes, it is not always needed as it says here, But, I'd like to defrag a fragmented volume before I archive it.

PPS: Cant convert this to ext4 as older systems that only support ext3 need to access it.

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    On Linux file systems, fragmentation is typically less then 5%, often 1 or 2% unless the disk is 99% full. Just for reference, my HDD has %0.3 fragmentation, and it only has 800MB free. To see how much fragmentation you actually have, just do sudo fsck.ext3 -fn /dev/sdX1 and at the bottom it will print the amount of fragmentation.
    – You'reAGitForNotUsingGit
    Apr 13, 2017 at 18:11
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    Did all that (and good for you), I have higher frag numbers and since I plan to archive this I'd like to do a final defrag on it - PS: Have double digit frag numbers so I'd be happy if I had your numbers i.e. 0.3 etc
    – Alex S
    Apr 13, 2017 at 18:13
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    Well, there's shake, which apparently is meant for ext3: webupd8.org/2009/10/defragmenting-linux-ext3-filesystems.html
    – You'reAGitForNotUsingGit
    Apr 13, 2017 at 20:05
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    @AndroidDev - Sorry to ask this, but how do I install it on Linux Mint Serena 32 bit (based on Ubuntu) (via Package Manager or Software Manager?) It says APT repository: vleu.net/apt - Not sure if I am doing something wrong here. Or should I pick a different build of Cinnamon or KBuntu here to make this easy? (I hate unity :P)
    – Alex S
    Apr 16, 2017 at 18:49
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    Sorry, but Mint is off topic here. You might want to ask that on Unix & Linux instead. That said, Ubuntu repositories are compatible with Mint, so you can install from the Ubuntu repos.
    – terdon
    Apr 18, 2017 at 9:52

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