Dev tools · alternatives · 2026

24 alternatives to Shared – Triptych for data exchange and persistence

Hi HN! I'm Alex, a tech enthusiast who likes to build stuff from scratch. Often my programs have data to store or a configuration file to read and/or edit. Therefore, I design relational databases [1] and write SQL queries to manage complex data with relationships, and for other needs, I used to do unmaintainable hacks (custom file formats) with plain old files. But that was before I discovered Pickle [2], the Python data serialization module. A simple way to store a representation of memory-living data collections on local disk. Therefore, Pickle became my favorite way to store data,…

Shared is a data exchange and persistence tool designed as a language-agnostic alternative to Python's Pickle module. It allows developers to store and retrieve data collections from disk while enabling data sharing… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Shared – Triptych for data exchange and persistence launched in 2022; newer entries below may have overtaken it.

1
I wrote a RDBMS (SQLite clone) from scratch in pure Python▲371
I wrote a relational database management system (RDBMS) (sqlite clone) from scratch in pure Python.
2023 · github.com · its alternatives →
2
I built an open-source data copy tool called ingestr▲156
Hi there, Burak here. I built an open-source data copy tool called ingestr (https://github.com/bruin-data/ingestr) I did build quite a few data warehouses both for the companies I worked at, as well as for consultancy projects. One of the more common pain points I observed was that everyone had to rebuild the same data ingestion bit over and over again, and each in different ways: - some wrote code for the ingestion from scratch to various degrees - some used off-the-shelf data ingestion tools like Fivetran / Airbyte I have always disliked both of these approaches,…
2024 · github.com · its alternatives →
3WS
We scaled Git to support 1 TB repos▲279
I’ve been in the MLOps space for ~10 years, and data is still the hardest unsolved open problem. Code is versioned using Git, data is stored somewhere else, and context often lives in a 3rd location like Slack or GDocs. This is why we built XetHub, a platform that enables teams to treat data like code, using Git. Unlike Git LFS, we don’t just store the files. We use content-defined chunking and Merkle Trees to dedupe against everything in history. This allows small changes in large files to be stored compactly. Read more here:…
2022 · xethub.com · its alternatives →
4
A Database Written in Golang▲277
Recently created a minimal persistent relational database in Go. Main focus was on implementing & understanding working the of database, storage management & transaction handling. Use of B+ Tree for storage engine(support for indexing), managing a Free List (for reusing nodes), Support for transactions, Concurrent Reads. Still have many things to add & fix like query processing being one of the main & fixing some bugs Repo link - https://github.com/Sahilb315/AtomixDB Would love to hear your thoughts
2025 · github.com · its alternatives →
5
On-disk B+ tree for Python 3▲159
An on-disk B+tree for Python 3. Contribute to NicolasLM/bplustree development by creating an account on GitHub.
2018 · github.com · its alternatives →
6
A Python container for dataclasses with multi-indexing and vector opps▲122
A container for dataclasses with multi-indexing and bulk operations. - joshlk/dataclassframe
2020 · github.com · its alternatives →
7
I started a repo for sharing algorithm implementations▲52
Everything that would be here is in the README. I hope this gets big, it has tons of potential.
2013 · github.com · its alternatives →
8AT
A tool to seed your dev database with real data▲129
A bunch of developers and myself have created RepliByte - an open-source tool to seed a development database from a production database. Features: - Support data backup and restore for PostgreSQL, MySQL and MongoDB - Replace sensitive data with fake data - Works on large database (> 10GB) (read Design) - Database Subsetting: Scale down a production database to a more reasonable size - Start a local database with the prod data in a single command - On-the-fly data (de)compression (Zlib) - On-the-fly data de/encryption (AES-256) - Fully stateless (no server, no daemon) and lightweight…
2022 · its alternatives →
9
Turbolite – a SQLite VFS serving sub-250ms cold JOIN queries from S3▲185
I built a SQLite VFS in Rust that serves cold queries directly from S3 with sub-second performance, and often much faster. It’s called turbolite. It is experimental, buggy, and may corrupt data. I would not trust it with anything important yet. I wanted to explore whether object storage has gotten fast enough to support embedded databases over cloud storage. Filesystems reward tiny random reads and in-place mutation. S3 rewards fewer requests, bigger transfers, immutable objects, and aggressively parallel operations where bandwidth is often the real constraint. This was explicitly inspired…
Mar 2026 · github.com · its alternatives →
10
Refurb – A tool for refurbishing and modernizing Python codebases▲123
A tool for refurbishing and modernizing Python codebases - dosisod/refurb
2022 · github.com · its alternatives →
11
Pyper – Concurrent Python Made Simple▲156
Hello and happy new year! We're excited to introduce the Pyper package for concurrency & parallelism in Python. Pyper is a flexible framework for concurrent / parallel data processing, following the functional paradigm. Source code can be found on [github](https://github.com/pyper-dev/pyper) Key features: Intuitive API: Easy to learn, easy to think about. Implements clean abstractions to seamlessly unify threaded, multiprocessed, and asynchronous work. Functional Paradigm: Python functions are the building blocks of data pipelines. Let's you write clean, reusable…
2025 · github.com · its alternatives →
12
Shared – Store, expose, read, and edit collections of data▲5
Data exchange and persistence based on human-readable files - pyrustic/shared
2021 · github.com · its alternatives →
13
Sortabase, a collaborative, visual database builder for communities▲116
We built Sortabase to let communities collaborate on visual databases of the things they know and care about. The fields of each database are defined by its moderators using a no-code drag-n-drop interface, and the resulting database is easy to search, filter, sort, and contribute to. The platform is 100% free to use - take a look, and feedback is appreciated!
2023 · sortabase.com · its alternatives →
14
ToplingDB - A Persistent Key-Value Store for External Storage▲73
As the creator of TerarkDB (acquired by ByteDance in 2019), I have developed ToplingDB in recent years. ToplingDB is forked from RocksDB, where we have replaced almost all components with more efficient alternatives(db_bench shows ToplingDB is about ~8x faster than RocksDB): * MemTable: SkipList is replaced by CSPP(Crash Safe Parallel Patricia trie), which is 8x faster. * SST: BlockBasedTable is replaced by ToplingZipTable, implemented by searchable compression algo, it is very small and fast, typically less than 1μs per lookup: * Keys/Indexes are compressed using NestLoudsTrie(a…
2025 · github.com · its alternatives →
15SV
SirixDB – versioning through efficient snapshotting▲55
I've already posted yesterday, but I'd really love to get comments, any kind of questions, suggestions and help would be greatly appreciated as it's an Open Source project of mine (and was for others during my studies at the University of Konstanz 6 years ago). Since then I spent countless ours to bring forth the idea of a versioned storage system, especially well suited for analytical tasks for timd-varying data. Especially I'd love to discuss what documentation you need, which next steps are necessary (JSON, Cloud...), API additions or changes... I've updated the README quiet a bit, such…
2018 · its alternatives →
16AB
a bash based data store written in python▲27
2012 · blog.alonsebastian.com.ar · its alternatives →
17
Drop▲138
Share files faster & safer! 🙌
2017 · its alternatives →
18
Pandashells – Bringing the Python data stack to the shell prompt▲89
:panda_face: Bringing the python data stack to the shell prompt - robdmc/pandashells
2015 · github.com · its alternatives →
19HA
Hashquery, a Python library for defining reusable analysis▲67
Hi all, we recently open sourced the first version of Hashquery, a Python library which lets you model analytics, DRY up common logic, and execute it against a database or warehouse. We were originally rendering SQL directly for all our queries, but that spiraled out of control with more complex analysis; the SQL needed to be changed sporadically for each new database dialect (BigQuery, Redshift, Aethena, Postgres, etc etc) and the SQL fragments were very challenging to reuse (and so fragments were copy-pasted all over). ~~~ Advantages we think it has over writing SQL by hand: - Queries are…
2024 · hashquery.dev · its alternatives →
20
I made a small site to share text and files▲41
Upload, store, and share your dumps and files securely.
2025 · dum.pt · its alternatives →
21
pbcopy/pbpaste across machines via Gitlab Snippets▲55
copy and paste across machines. Contribute to bradwood/glsnip development by creating an account on GitHub.
2020 · github.com · its alternatives →
22FB
File-based cache for slow Python functions▲73
2024 · docs.sweep.dev · its alternatives →
23
CallFS – S3-style object store in one Go binary (MIT)▲66
We started CallFS after yet another late-night “why did the uploads vanish?” incident. Our small team had stitched together rsync, a fragile NFS mount, and an S3 bucket—none of it observable, all of it waiting to bite us. So we wrote a single-process file service in Go that: • Speaks the S3 API (so existing tooling works). • Stores hot data on local disks for speed; cold data can sit in any S3-compatible bucket. • Exposes Prometheus metrics and JSON logs by default, because “what happened?” shouldn’t be guesswork. • Ships as a ~25 MB static binary—no external deps, MIT license. Today it’s…
2025 · github.com · its alternatives →
24
I built a Ruby gem that handles memoization with a ttl▲48
I built a Ruby gem for memoization with TTL + LRU cache. It’s thread-safe, and has been helpful in my own apps. Would love to get some feedback: https://github.com/mishalzaman/memo_ttl
2025 · github.com · its alternatives →

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