{"slug": "localstack", "name": "LocalStack", "category": "infra", "category_name": "Infrastructure and DevOps", "description": "", "recommenders": 1, "commenters": 5, "warners": 2, "score": -0.303, "rising": -0.33, "first": "2025-12-19", "latest": "2026-03-31", "why": "Although I love localstack and am grateful for what they have done", "why_is_quote": true, "has_verdict": false, "sentiment": {"recommend": 1, "neutral": 2, "compare": 0, "warn": 2}, "spark": [0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0], "listed": false, "loved": [], "caveat": "", "short_quote": "Although I love localstack and am grateful for what they have done", "icon": false, "domain": "localstack.cloud", "github_repo": null, "official_url": "https://localstack.cloud", "pricing": "", "aliases": ["LocalStack"], "verdict": null, "praise": [{"label": "", "summary": "", "quotes": [{"id": 759576480, "item_id": 47473530, "url": "https://news.ycombinator.com/item?id=47473530", "by": "operator_nil", "date": "2026-03-21", "stance": "recommend", "quote": "Although I love localstack and am grateful for what they have done", "excerpt": "This is exactly what I was waiting for. Although I love localstack and am grateful for what they have done, I always thought that an open community-driven solution would be much more suitable and opens a lot of doors for AWS engineers to contribute back. I\u2019m certain that it\u2019s on their best interest to do so (specially as many of their popular products have local versions) It\u2019s a no-brainer to me as AI adoption contin", "context": "AWS engineer", "use_case": "local AWS emulation", "switched_from": "", "story": "Floci \u2013 A free, open-source local AWS emulator"}]}], "caveats": [{"label": "", "summary": "", "quotes": [{"id": 761539648, "item_id": 47596228, "url": "https://news.ycombinator.com/item?id=47596228", "by": "robshippr", "date": "2026-03-31", "stance": "warn", "quote": "The real issue with LocalStack was always drift.", "excerpt": "The real issue with LocalStack was always drift. Tests pass locally, then something breaks in staging because the S3 response format is slightly different or DynamoDB throttling doesn't match. After getting burned enough times we just switched to short-lived real AWS environments for integration tests. More expensive, but way fewer surprises in prod.", "context": "", "use_case": "local AWS emulation for tests", "switched_from": "", "story": "MiniStack (replacement for LocalStack)"}, {"id": 741320626, "item_id": 46332539, "url": "https://news.ycombinator.com/item?id=46332539", "by": "eduardogarza", "date": "2025-12-19", "stance": "warn", "quote": "Previously I used LocalStack S3 but ultimately didn't like the lack of persistance thats not available on the OSS verison.", "excerpt": "I use this for booting up S3-compatible buckets for local development and testing -- paired up with s5cmd, I can seed 15GB and over 60,000 items (seed/mock data) in < 60s... have a perfect replica of a staging environment with Docker containers (api, db, cache, objects) all up in less than 2mins. Super simple to set up for my case and been working great. Previously I used LocalStack S3 but ultimately didn't like the ", "context": "", "use_case": "local S3", "switched_from": "", "story": "Garage \u2013 An S3 object store so reliable you can run it outside datacenters"}]}], "who": [{"by": "stanac", "context": "works at a corp", "url": "https://news.ycombinator.com/item?id=47494379", "date": "2026-03-23"}, {"by": "operator_nil", "context": "AWS engineer", "url": "https://news.ycombinator.com/item?id=47473530", "date": "2026-03-21"}], "tags": [], "use_cases": ["local aws emulation", "local aws emulation for tests", "integration tests", "local s3"], "compared": [{"slug": "floci", "name": "Floci", "co": 3, "switched_from": 0, "switched_to": 1}, {"slug": "garage", "name": "Garage", "co": 1, "switched_from": 0, "switched_to": 1}, {"slug": "aws", "name": "AWS", "co": 1, "switched_from": 0, "switched_to": 1}], "makers": [], "threads": [{"url": "https://news.ycombinator.com/item?id=47471801", "title": "Floci \u2013 A free, open-source local AWS emulator", "mentions": 2}, {"url": "https://news.ycombinator.com/item?id=47593285", "title": "MiniStack (replacement for LocalStack)", "mentions": 1}, {"url": "https://news.ycombinator.com/item?id=47493657", "title": "Local Stack Archived their GitHub repo and requires an account to run", "mentions": 1}, {"url": "https://news.ycombinator.com/item?id=46326984", "title": "Garage \u2013 An S3 object store so reliable you can run it outside datacenters", "mentions": 1}], "sentiment_by_month": {"2025-11": {}, "2025-12": {"warn": 1}, "2026-01": {}, "2026-02": {}, "2026-03": {"recommend": 1, "neutral": 2, "warn": 1}, "2026-04": {}, "2026-05": {}, "2026-06": {}, "2026-07": {}, "2026-08": {}, "2026-09": {}, "2026-10": {}}, "quotes": [{"id": 761539648, "item_id": 47596228, "url": "https://news.ycombinator.com/item?id=47596228", "by": "robshippr", "date": "2026-03-31", "stance": "warn", "quote": "The real issue with LocalStack was always drift.", "excerpt": "The real issue with LocalStack was always drift. Tests pass locally, then something breaks in staging because the S3 response format is slightly different or DynamoDB throttling doesn't match. After getting burned enough times we just switched to short-lived real AWS environments for integration tests. More expensive, but way fewer surprises in prod.", "context": "", "use_case": "local AWS emulation for tests", "switched_from": "", "story": "MiniStack (replacement for LocalStack)"}, {"id": 759910064, "item_id": 47494379, "url": "https://news.ycombinator.com/item?id=47494379", "by": "stanac", "date": "2026-03-23", "stance": "neutral", "quote": "I use it everyday, our integration tests depend on local stack.", "excerpt": "So is local stack dead? Is this situation the lesser evil? Or is it not dead and we will see a villain rise? Edit: I see now, they have commercial offerings: https://www.localstack.cloud/pricing I am not sure if my corp will be willing to pay or tell us to find something else, but I use it everyday, our integration tests depend on local stack.", "context": "works at a corp", "use_case": "integration tests", "switched_from": "", "story": "Local Stack Archived their GitHub repo and requires an account to run"}, {"id": 759577456, "item_id": 47473591, "url": "https://news.ycombinator.com/item?id=47473591", "by": "banditelol", "date": "2026-03-21", "stance": "neutral", "quote": "I've tried localstack before", "excerpt": "Cool, I've tried localstack before and cant wait to give it a try Anyway, do anyone know if there're similar stuff but for gcp? So far https://github.com/goccy/bigquery-emulator helped me a lot in emulating bigquery behaviour, but I cant find emulator for the whole gcp environment.", "context": "", "use_case": "local AWS emulation", "switched_from": "", "story": "Floci \u2013 A free, open-source local AWS emulator"}, {"id": 759576480, "item_id": 47473530, "url": "https://news.ycombinator.com/item?id=47473530", "by": "operator_nil", "date": "2026-03-21", "stance": "recommend", "quote": "Although I love localstack and am grateful for what they have done", "excerpt": "This is exactly what I was waiting for. Although I love localstack and am grateful for what they have done, I always thought that an open community-driven solution would be much more suitable and opens a lot of doors for AWS engineers to contribute back. I\u2019m certain that it\u2019s on their best interest to do so (specially as many of their popular products have local versions) It\u2019s a no-brainer to me as AI adoption contin", "context": "AWS engineer", "use_case": "local AWS emulation", "switched_from": "", "story": "Floci \u2013 A free, open-source local AWS emulator"}, {"id": 741320626, "item_id": 46332539, "url": "https://news.ycombinator.com/item?id=46332539", "by": "eduardogarza", "date": "2025-12-19", "stance": "warn", "quote": "Previously I used LocalStack S3 but ultimately didn't like the lack of persistance thats not available on the OSS verison.", "excerpt": "I use this for booting up S3-compatible buckets for local development and testing -- paired up with s5cmd, I can seed 15GB and over 60,000 items (seed/mock data) in < 60s... have a perfect replica of a staging environment with Docker containers (api, db, cache, objects) all up in less than 2mins. Super simple to set up for my case and been working great. Previously I used LocalStack S3 but ultimately didn't like the ", "context": "", "use_case": "local S3", "switched_from": "", "story": "Garage \u2013 An S3 object store so reliable you can run it outside datacenters"}]}