zstd

FIRST-HAND READS

What people reported, in their own words. Every line links to where it was said.

• “39kb includes the zstd decoder which is statically compiled into it”

  POSITIVE · performance · Hacker News · 2026-06-08

• “I love zstd as the next guy and I do use zstd solo for the most part”

  POSITIVE · performance · Hacker News · 2026-05-07

• “zstd also compresses in parallel by default and has tools built in to handle these things, so seekable zstd archives are fairly common”

  POSITIVE · features · Hacker News · 2026-04-24

• “compressed those with zstd and decompressed them via wasm on every load. Decompressing and loading was now faster than straight loading via SQLite”

  POSITIVE · performance · Hacker News · 2026-04-15

• “zstd -19 gave me the best results for small file sizes and fast decompression of text data. It's amazing that you can include a 50kb zstd decompression wasm module and really speed everything up.”

  POSITIVE · performance · Hacker News · 2026-04-15

• “zstd's flush ability that I've used for streaming robotics data. You can write data and flush it over the network for realtime updates, but the compression stream stays open so it can still reference past messages. This means messages get smaller over time so you don't need to share a dictionary ahead of time. I'm not aware of other compression algorithms that have flushing capability like this.”

  POSITIVE · features · Hacker News · 2026-04-02

• “I had issues getting it to use zstd at boot. Not sure if it's a bug or some peculiarity with Debian.”

  NEGATIVE · reliability · Hacker News · 2026-03-24

• “Zstd is just a few % more bytes to store for over an order of magnitude more speed (1GB/s instead of 45MB/s)”

  POSITIVE · performance · Hacker News · 2026-03-15

• “I get 2 to 3 compression factor at all times with zstd. I calculated the utility to be as if I had 20GB extra RAM for what I do.”

  POSITIVE · performance · Hacker News · 2026-02-26

• “auto generate a zstd self-extraction wrapper and patch files with every release, so your initial download will be much smaller than if you'd used zip and your updates will be as small as 14KB so you can ship as often as you like without you or your users paying the bandwidth tax”

  POSITIVE · performance · Hacker News · 2026-02-19

• “instead of the OS noticing that zstd was not supported, it would always use a zstd compressed initramfs image and would require the user to manually configure a supported compression their kernel supported. I don't understand why they thought it was a good idea to break my install for something that should be easy to do automatically”

  NEGATIVE · reliability · Hacker News · 2026-02-15

• “It's also fairly easy to implement in other languages with zstd bindings, or even shell scripts”

  POSITIVE · ease of use · Hacker News · 2026-02-12

• “Something is going terribly wrong with `zstd` here, where it is reported to compress a file of 1.1MB to 2MB. Zstd should never grow the file size by more than a very small percent”

  NEGATIVE · performance · Hacker News · 2026-01-22

• “When compressing zstd in parallel it produces the garbage results seen here”

  NEGATIVE · performance · Hacker News · 2026-01-22

• “no combination of flags to zstd gets it to match the size of brotli's output on that particular file. Even zstd --long --ultra -22.”

  NEGATIVE · performance · Hacker News · 2026-01-22

• “I prefer zstd, because it is like 10x faster for both compression and decompression.”

  POSITIVE · performance · Hacker News · 2026-01-22

• “we changed to zstd compression, rebuilt all the storage, and a day or two later our storage was under 500GB”

  POSITIVE · performance · Hacker News · 2025-11-13

• “OpenZL is significantly better than zstd, but worse than flac”

  NEGATIVE · performance · Hacker News · 2025-10-07