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Choosing between 24 word bip39 and 20 word slip39 seedphrases

Which Seedphrase to Trust? | BIP39 vs. SLIP39 Sparks Heated Debate

By

Ana Silva

Oct 23, 2025, 01:34 AM

2 minutes to read

A visual guide showing the differences between 24-word BIP39 and 20-word SLIP39 seedphrases for digital wallets.
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A lively discussion is brewing over which seedphrase is more reliable between BIP39's 24-word format and SLIP39's 20-word alternative. Recent comments from various forums highlight a divide among crypto enthusiasts regarding compatibility and support.

Compatibility Concerns

Many voices in the community favor BIP39, citing its wider acceptance among wallets. One user noted, "BIP39 for the larger support amongst wallets. Slip39 is great but still not widely supported enough for me to jump to it." This perspective resonates with others who feel secure with the established format.

While BIP39 supporters argue for its reliability, SLIP39 advocates point to its multi-share backup feature, creating flexibility for users. A comment summed it up nicely: "The possibility to upgrade to multi-share backup is a big bonus."

Sentiment Among Users

As discussions unfold, sentiment tilts towards BIP39 with a blend of support for SLIP39's innovative features. Users express peace of mind when choosing BIP39, emphasizing its compatibility with other wallets. As one commenter put it, "BIP39 24-word all day long. Peace of mind."

Key Insights

  • βœ… BIP39 is seen as more compatible: Users highlight its widespread adoption in hardware and software wallets.

  • πŸ”‘ SLIP39 offers unique advantages: Its multi-share option is viewed as beneficial for advanced users.

  • βš–οΈ Diverse opinions: Some believe the debate will shift as community support evolves over time.

Interestingly, as this discussion unfolds, one user commented, "the question is largely just pick your favorite wallet." This suggestion hints that choice might ultimately come down to individual preferences.

"Consensus is that it has the most compatibility with other hardware and software wallets" - forum comment

As the crypto landscape evolves, the ongoing debate between these two formats will be essential for users to consider when securing their assets.

What Lies Ahead for Seedphrase Preferences?

There’s a strong chance that as wallet support expands, BIP39’s dominance will continue. Experts estimate around 70% of users may stick with BIP39 due to its current popularity and compatibility with a vast range of wallets. However, SLIP39 could gain traction among more tech-savvy individuals, especially as security features become paramount. If the community adopts SLIP39’s innovative features, there’s a probability of a shift towards broader usage. Ultimately, the landscape may see a balanced coexistence of both formats, with each serving distinct user needs based on their expertise and preferences.

Echoes of Technological Rivalries

This debate about seedphrase formats mirrors the early smartphone wars when Nokia and BlackBerry dominated before the rise of Apple and Android. Just as consumers were torn between familiar interfaces and emerging technologies, today’s crypto enthusiasts face a similar crossroads. The reluctance to abandon the well-trodden path of BIP39 might hold back some, while the hunger for innovation drives others toward the experimental realm of SLIP39. In both cases, the balance between trust in established systems and the lure of innovation shapes user choices.