Dev tools · alternatives · 2026
24 alternatives to Arxid – keyed, non-enumerable ID obfuscation
I kept reaching for Hashids/Sqids to keep sequential IDs out of URLs, but they don't use a real key — the alphabet is shuffled by a salt, and the Sqids FAQ says outright "there is no encryption of any kind." arxid is a keyed reversible permutation instead: a balanced Feistel network with an ARX (add-rotate-xor) round function over a 40-bit domain, mapping to a 7-char base62 code. Feed it an integer, get an unpredictable code back; same key reverses it. Runs ~16x faster than a structurally identical Feistel using HMAC-SHA256, because the round function is integer ops instead of a hash…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Sha256 algorithm explained online step by step visually
2022 · sha256algorithm.com · its alternatives →
- 2
SHA-256 Animation▲1,053Animation of the SHA-256 hash function in your terminal. - in3rsha/sha256-animation
2020 · github.com · its alternatives →
- 3
filippo.io/mlkem768 is a pure-Go implementation of the post-quantum key exchange mechanism ML-KEM-768 optimized for correctness and readability.
2024 · words.filippo.io · its alternatives →
- 4
Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
2023 · github.com · its alternatives →
- 5
A small, portable, linear probing hash map. Contribute to e-dant/salmagundi development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 6
Timeflake is a 128-bit, roughly-ordered, URL-safe UUID. - anthonynsimon/timeflake
2021 · github.com · its alternatives →
- 7
keychains.dev▲177Hi HN — I’m a heavy OpenClaw user and, like many others, I’ve been thinking about how to give these new “unleashed” agents secure access to my accounts. Agents need API access to be useful. But API keys are long-lived secrets. And agents are not secure environments. So I built something for myself that quickly turned into a product: keychains.dev. The idea is simple: agents never see raw credentials. With Keychains.dev: • Agents make API calls via a drop-in replacement for curl or JavaScript’s fetch() • They use template variable names instead of embedding credentials • The request is…
Feb 2026 · keychains.dev · its alternatives →
- 8PP
2020 · puree.cc · its alternatives →
- 9
😊 Generate cute UIDs. Contribute to alexandriax/cuteuid development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 10
Hello HN, we're CipherNomad, the research initiative behind this project. The Ariadne Protocol is our exploration of a different cryptographic model. The work began with an observation of primitives like the Lion transform, which use a static, hardcoded sequence of operations. This led us to ask: What if the cryptographic "program" wasn't a constant, but a dynamic, history-dependent variable? Our first step was a "Cryptographic Virtual Machine" that took an explicit list of operations (a "Path"). This worked, but required sharing the Path object—an explicit dependency that needed to be…
2025 · codeberg.org · its alternatives →
- 11
Bitwise operations and conversions to hexadecimals
2016 · flippybitandtheattackofthehexadecimalsfrombase16.com · its alternatives →
- 12
A Go library that implements Consistent Hashing and Consistent Hashing With Bounded Loads. - lafikl/consistent
2017 · github.com · its alternatives →
- 13
XID generates 20-character globally unique IDs (48-bit timestamp + 64-bit entropy + 8-bit counter + 5-bit checksum) in a single C file with zero dependencies. Features built-in timestamp extraction, collision resistance, and portable design for any platform - ideal for databases, IoT, and distributed systems. char id = xid_generate(); // => "01H5Z7K4W9A3B6C8D0F2G" Gists: https://gist.github.com/Ferki-git-creator/17450d52d143f746f0... (Feedback wanted: entropy improvements, embedded use cases, optimizations)*
2025 · gist.github.com · its alternatives →
- 14
Simple in-memory Key/Value Store written in Elixir using `cabol/ex_shards` - cabol/kvx
2016 · github.com · its alternatives →
- 15
qrkey is a command-line tool for generating and recovering QR codes from files for offline private key backup. - Techwolf12/qrkey
2025 · github.com · its alternatives →
- 16
A generator library for concise, unambiguous and URL-safe UUIDs - lithammer/shortuuid
2015 · github.com · its alternatives →
- 17
Decentralized, k-ordered unique IDs in Clojure. Contribute to maxcountryman/flake development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 18
privilege separation engine for OpenSSL / LibreSSL - h2o/neverbleed
2015 · github.com · its alternatives →
- 19
fusionTAP▲55Intuitively secure your data - it's one-TAP-simple
2023 · fusiontap.com · its alternatives →
- 20
A tutorial on how to code a privacy-preserving version of Shazam using Zama Concrete ML.
2024 · zama.ai · its alternatives →
- 21
Pure PHP polyfill for ext/sodium. Contribute to paragonie/sodium_compat development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 22
I’ve been experimenting with structured logic as a way to frame search spaces — not in an academic way, just as a personal project. I wanted to know: what happens if you initialize a brute-force run with a simple equality like xy = x / y? Not as a filter, just as a logical ignition point. I used AES-256-CBC encrypted files with UUID passwords and tested against a 1 million UUID space. It cracked it in under 40 seconds. Then I scaled it to a 1 billion UUID range, and it still found the key without issue. This isn’t a crypto tool, and I’m not trying to solve any cryptographic problems.…
2025 · github.com · its alternatives →
- 23
This is an educational reference implementation showing how to build reasonably secure, standards-compliant authentication from first principles on Cloudflare Workers. Stack: Hono, Turso (libSQL), PBKDF2-SHA384 + normalization + common-password checks, JWT access + refresh tokens with revocation support, HTTP-only SameSite cookies, device tracking. It's deliberately minimal — no OAuth, no passkeys, no magic links, no rate limiting — because the goal is clarity and auditability. I wrote it mainly to deeply understand edge-runtime auth constraints and to have a clean Apache-2.0 example that…
Feb 2026 · github.com · its alternatives →
- 24AL
Hi HN, I’m one of the maintainers of Bridge Anonymization. We built this because the existing solutions for translating sensitive user content are insufficient for many of our privacy-concious clients (Governments, Banks, Healthcare, etc.). We couldn't send PII to third-party APIs, but standard redaction destroyed the translation quality. If you scrub "John" to "[PERSON]", the translation engine loses gender context (often defaulting to masculine), which breaks grammatical agreement in languages like French or German. So we built a reversible, local-first pipeline for Node.js/Bun. Here…
Dec 2025 · medium.com · its alternatives →
Also compare
- SHA-256 explained step-by-step visually alternatives
- SHA-256 Animation alternatives
- filippo.io/mlkem768 – Post-Quantum Cryptography for the Go Ecosystem alternatives
- A hash array-mapped trie implementation in C alternatives
- A portable hash map in C alternatives
- 128-bit, roughly-ordered, URL-safe UUIDs alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →