This repo is a curated, GitHub-friendly index of ByteByteGo software engineering visual references. It collects 300+ images from the ByteByteGo website (not original work) and organizes them into 13 categories, with a gallery-style README that previews each asset and links to the corresponding file in assets/. The purpose is accessibility and easy browsing/searching of these diagrams and cheat sheets on GitHub.

This repository contains software engineering reference images. All content is sourced from the ByteByteGo website and is not my own. It is collected here solely to improve accessibility on GitHub.

• ByteByteGo Software Engineering Visual Index
  • Quick links
  • Categories
    • APIs & Integration (58 items)
    • Security & Privacy (11 items)
    • Databases & Storage (44 items)
    • Caching & Performance (27 items)
    • Networking & Distributed Systems (33 items)
    • Cloud, DevOps & Infrastructure (35 items)
    • System Design & Architecture (28 items)
    • Data & Analytics (7 items)
    • Payments & FinTech (14 items)
    • Programming & CS Fundamentals (24 items)
    • Product & Frontend (16 items)
    • Company & Case Studies (3 items)
    • Miscellaneous (46 items)

Show gallery

Preview	Title	File
	How to improve api performance	0001-how-to-improve-api-performance.png
	Types of api testing	0017-9-types-of-api-testing.png
	Tips for api security	0027-12-tips-for-api-security.png
	Rest vs graphql	0036-rest-vs-graphql.png
	Rest api cheatsheet	0040-rest-api-cheatsheet.png
	Top network security cheatsheet	0049-top-network-security-cheatsheet.png
	What is grpc	0054-what-is-grpc.png
	What is graphql	0055-what-is-graphql.png
	Pooling vs webhook	0057-pooling-vs-webhook.png
	Api vs sdk	0071-api-vs-sdk.png
	What does api gateway do	0072-what-does-api-gateway-do.png
	Top 3 api gateway use cases	0073-top-3-api-gateway-use-cases.png
	Api gateway 101	0074-api-gateway-101.png
	Api pagination 101	0076-api-pagination-101.png
	Api protocols	0077-api-protocols.png
	Authentication mechanisms	0078-authentication-mechanisms.png
	Authenticator	0079-authenticator.jpg
	Http 1 http 2 http 3	0101-http-1-http-2-http-3.png
	Explaining json web token jwt to a 10 year old kid	0107-explaining-json-web-token-jwt-to-a-10-year-old-kid.png
	What is oauth	0111-what-is-oauth.png
	Oauth flows	0112-oauth-flows.png
	Structure of url	0116-structure-of-url.png
	Api style compare	0126-api-style-compare.jpg
	Cookies session jwt	0152-cookies-session-jwt.png
	Cookies vs sessions vs jwt vs paseto	0155-cookies-vs-sessions-vs-jwt-vs-paseto.png
	Cybersecurity 101 in one picture	0156-cybersecurity-101-in-one-picture.png
	Effective apis	0180-effective-apis.jpeg
	Graphql adoption patterns	0208-graphql-adoption-patterns.png
	Graphql linkedin	0209-graphql-linkedin.jpeg
	Grpc	0210-grpc.png
	How does https work	0220-how-does-https-work.png
	Http header	0231-http-header.png
	Http status code shouldnt exist	0232-http-status-code-shouldnt-exist.png
	Http status code	0233-http-status-code.png
	Is https reliable	0238-is-https-reliable.png
	Jwt 101 key to stateless authentication	0244-jwt-101-key-to-stateless-authentication.png
	Lb api gateway	0252-lb-api-gateway.png
	Netflix api	0290-netflix-api.png
	Explaining 8 popular network protocols in 1 diagram	0292-explaining-8-popular-network-protocols-in-1-diagram.png
	Is passkey shaping a passwordless future	0296-is-passkey-shaping-a-passwordless-future.png
	Pinterest one line change	0302-pinterest-one-line-change.png
	Rest api authentication methods	0317-rest-api-authentication-methods.png
	Reverse gateway lb	0320-reverse-gateway-lb.png
	Secure api	0325-secure-api.png
	Session cookie jwt	0331-session-cookie-jwt.jpg
	What s the difference between session based authentication and jwts	0333-what-s-the-difference-between-session-based-authentication-and-jwts.png
	Short long polling sse websocket	0337-short-long-polling-sse-websocket.jpeg
	Slack message journey	0338-slack-message-journey.jpg
	How does sso work	0342-how-does-sso-work.jpeg
	The ultimate api learning roadmap	0361-the-ultimate-api-learning-roadmap.png
	Top 9 http request methods	0371-top-9-http-request-methods.png
	Top 6 cases of leveraging idempotency	0377-top-6-cases-of-leveraging-idempotency.png
	Top 6 tools to turn code into beautiful diagrams	0382-top-6-tools-to-turn-code-into-beautiful-diagrams.png
	Type a url into your browser	0393-type-a-url-into-your-browser.png
	Uber api layer	0397-uber-api-layer.png
	Url uri urn	0401-url-uri-urn.png
	Https ssl handshake and data encryption explained to kids	0409-https-ssl-handshake-and-data-encryption-explained-to-kids.png
	Why http2 is faster than http1	0421-why-http2-is-faster-than-http1.png

Show gallery

Preview	Title	File
	Encoding vs encryption vs tokenization	0033-encoding-vs-encryption-vs-tokenization.png
	Top 6 firewall use cases	0047-top-6-firewall-use-cases.png
	How a vpn works	0052-how-a-vpn-works.png
	Cheatsheet for managing sensitive data	0058-cheatsheet-for-managing-sensitive-data.png
	Cache miss attack	0128-cache-miss-attack.png
	Cheat sheet for designing secure systems	0138-cheat-sheet-for-designing-secure-systems.png
	Firewall	0191-firewall.jpeg
	Password manager	0297-password-manager.png
	Salt	0321-salt.png
	Symmetric encryption vs asymmetric encryption	0349-symmetric-encryption-vs-asymmetric-encryption.png
	Is telegram secure	0354-is-telegram-secure.jpg

Show gallery

Preview	Title	File
	Steps to learn the fundamentals of redis 101	0009-steps-to-learn-the-fundamentals-of-redis-101.png
	Types of database locks	0022-9-types-of-database-locks.png
	How to learn sql	0031-how-to-learn-sql.png
	Blockchains	0087-blockchains.png
	Blocking noblocking queue	0088-blocking-noblocking-queue.jpeg
	Btree lsm	0091-btree-lsm.png
	Dbshards	0096-dbshards.png
	Dbtypes	0097-dbtypes.png
	Databases used in netflix	0098-databases-used-in-netflix.jpg
	Sql query logical order	0114-sql-query-logical-order.png
	Explain the top 6 use cases of object stores	0117-explain-the-top-6-use-cases-of-object-stores.png
	Database types	0160-database-types.jpg
	Database middleware	0162-database-middleware.png
	Design s3	0169-design-s3.jpg
	Erasure coding	0187-erasure-coding.png
	How redis presists data	0214-how-redis-presists-data.png
	How to choose db	0215-how-to-choose-db.png
	How redis architecture evolve	0223-how-redis-architecture-evolve.png
	How to choose the right database	0227-how-to-choose-the-right-database.png
	Is postgresql eating the database world	0237-is-postgresql-eating-the-database-world.png
	Isolation level	0239-isolation-level.png
	Memcached redis	0267-memcached-redis.jpg
	Memory storage	0268-memory-storage.png
	Top 10 most popular open source databases	0282-top-10-most-popular-open-source-databases.png
	Must know system design building blocks	0285-must-know-system-design-building-blocks.png
	Pessimistic vs optimistic locking	0301-pessimistic-vs-optimistic-locking.png
	Postgres	0303-postgres.png
	Read replica pattern	0312-read-replica-pattern.png
	Redis chat	0314-redis-chat.jpg
	Serverlessdb	0329-serverlessdb.jpeg
	Sql execution order in db	0340-sql-execution-order-in-db.jpeg
	Storage system	0346-storage-system.png
	Time series db tsdb in 20 lines	0364-time-series-db-tsdb-in-20-lines.jpeg
	Top 4 types of sql joins	0367-top-4-types-of-sql-joins.png
	Top 6 database models	0369-top-6-database-models.png
	Top 4 data sharding algorithms explained	0373-top-4-data-sharding-algorithms-explained.png
	Top 6 data management patterns	0379-top-6-data-management-patterns.png
	Top 6 use cases of distributed lock	0383-top-6-use-cases-of-distributed-lock.png
	How can redis be used	0388-how-can-redis-be-used.png
	Understanding database types	0394-understanding-database-types.png
	Vertical partitioning vs horizontal partitioning	0402-vertical-partitioning-vs-horizontal-partitioning.png
	What does acid mean	0407-what-does-acid-mean.png
	What is a deadlock	0411-what-is-a-deadlock.png
	Why is redis so fast	0422-why-is-redis-so-fast.png

Show gallery

Preview	Title	File
	Learn cache	0004-learn-cache.png
	Must know website performance metrics	0021-must-know-website-performance-metrics.png
	How caches can go wrong	0038-how-caches-can-go-wrong.png
	Top 6 load balancer use cases	0046-top-6-load-balancer-use-cases.png
	Top 8 cache eviction strategies	0059-top-8-cache-eviction-strategies.png
	Cloud load balancer cheatsheet	0094-cloud-load-balancer-cheatsheet.gif
	Caching strategy	0129-caching-strategy.jpg
	Cdn	0132-cdn.png
	Frontend performance cheatsheet	0198-frontend-performance-cheatsheet.png
	Hotspot accounts	0212-hotspot-accounts.png
	How cdn works	0230-how-cdn-works.png
	Latency numbers	0250-latency-numbers.jpg
	Lb algorithms	0251-lb-algorithms.png
	What is a load balancer	0261-what-is-a-load-balancer.png
	Logging tracing metrics	0264-logging-tracing-metrics.png
	Low latency stock exchange	0265-low-latency-stock-exchange.jpg
	Metrics access pattern	0273-metrics-access-pattern.jpg
	Metrics push pull	0274-metrics-push-pull.png
	Most popular cache eviction	0281-most-popular-cache-eviction.png
	Things to consider when using cache	0362-things-to-consider-when-using-cache.png
	Top 5 caching strategies	0374-top-5-caching-strategies.png
	Top 5 strategies to reduce latency	0375-top-5-strategies-to-reduce-latency.png
	What makes aws lambda so fast	0417-what-makes-aws-lambda-so-fast.png
	Cache systems every developer should know	0418-cache-systems-every-developer-should-know.jpeg
	Why cdns are so popular	0420-why-cdns-are-so-popular.png
	Why is nginx so popular	0423-why-is-nginx-so-popular.png
	Why is kafka fast	0424-why-is-kafka-fast.jpg

Show gallery

Preview	Title	File
	Explaining 5 unique id generators in distributed systems	0006-explaining-5-unique-id-generators-in-distributed-systems.png
	Use cases for event sourcing	0037-use-cases-for-event-sourcing.png
	Top 4 udp use cases	0044-top-4-udp-use-cases.png
	How we manage configuration	0056-how-we-manage-configuration.png
	Eventual consistency patterns you must know	0100-eventual-consistency-patterns-you-must-know.png
	Internet traffic routing policies	0106-internet-traffic-routing-policies.png
	Top 7 most used distributed system patterns	0119-top-7-most-used-distributed-system-patterns.png
	Typical aws network architecture	0123-typical-aws-network-architecture.png
	Unicast vs broadcast vs multicast vs anycast	0125-unicast-vs-broadcast-vs-multicast-vs-anycast.png
	Can kafka lose messages	0130-can-kafka-lose-messages.png
	Cap theorem	0131-cap-theorem.jpeg
	Change data capture key to leverage real time data	0133-change-data-capture-key-to-leverage-real-time-data.png
	Delivery semantics	0165-delivery-semantics.png
	Discord store messages	0174-discord-store-messages.png
	Dns record types you should know	0175-dns-record-types-you-should-know.png
	Dns look up	0176-dns-look-up.png
	Energy efficient language	0186-energy-efficient-language.jpg
	Event sourcing	0188-event-sourcing.jpeg
	Forward proxy vs reverse proxy	0196-forward-proxy-vs-reverse-proxy.png
	Git commands cheat sheet	0201-git-commands-cheat-sheet.png
	Git commands	0202-git-commands.png
	How tiktok manages a 200k file frontend monorepo	0226-how-tiktok-manages-a-200k-file-frontend-monorepo.png
	Ipv4 vs ipv6	0236-ipv4-vs-ipv6.png
	Kubernetes command cheatsheet	0248-kubernetes-command-cheatsheet.png
	Mcdonald s event driven architecture	0266-mcdonald-s-event-driven-architecture.png
	Message queue evolve	0271-message-queue-evolve.png
	Message queues	0272-message-queues.png
	Osi model	0295-osi-model.jpeg
	Reliable udp	0315-reliable-udp.png
	Cap base solid kiss	0350-cap-base-solid-kiss.png
	Types of queues	0366-types-of-queues.png
	Top 6 heartbeat detection mechanisms	0370-top-6-heartbeat-detection-mechanisms.png
	Wan lan pan man explained	0405-wan-lan-pan-man-explained.png

Show gallery

Preview	Title	File
	K8s service types	0005-4-k8s-service-types.png
	Must know docker concepts	0012-8-must-know-docker-concepts.png
	Cloud disaster recovery strategies	0050-cloud-disaster-recovery-strategies.png
	What is devsecops	0060-what-is-devsecops.png
	Cloud native anti patterns	0070-cloud-native-anti-patterns.png
	Azure cloud services cheat sheet	0083-azure-cloud-services-cheat-sheet.png
	Big data pipeline cheatsheet for aws azure and gcp	0086-big-data-pipeline-cheatsheet-for-aws-azure-and-gcp.png
	Cloud comparison cheat sheet	0093-cloud-comparison-cheat-sheet.png
	Devops vs noops	0099-devops-vs-noops.png
	Kubernetes periodic table	0108-kubernetes-periodic-table.png
	Kubernetes tools ecosystem	0109-kubernetes-tools-ecosystem.png
	Kubernetes tools stack wheel	0110-kubernetes-tools-stack-wheel.png
	Orchestration vs choreography microservices	0113-orchestration-vs-choreography-microservices.png
	Ci cd pipeline	0140-ci-cd-pipeline.png
	Ci cd workflow	0141-ci-cd-workflow.png
	Cloud cost reduction techniques	0145-cloud-cost-reduction-techniques.png
	Cloud hidden costs	0148-cloud-hidden-costs.png
	How doe we adopt cloud native	0149-how-doe-we-adopt-cloud-native.png
	Deployment strategies	0166-deployment-strategies.png
	Devops sre platform	0172-devops-sre-platform.png
	How terraform creates infra at scale	0225-how-terraform-creates-infra-at-scale.png
	K8s	0245-k8s.png
	Kubernates deployment strategy	0247-kubernates-deployment-strategy.jpeg
	Lambda	0249-lambda.jpg
	Monolithic arch use cases	0278-monolithic-arch-use-cases.jpg
	Monorepo microrepo	0279-monorepo-microrepo.png
	Most important aws services	0280-most-important-aws-services.png
	Netflix ci cd	0287-netflix-ci-cd.png
	The most popular deployment strategies	0358-the-most-popular-deployment-strategies.png
	Top 10 k8s design patterns	0372-top-10-k8s-design-patterns.png
	Top 6 cloud messaging patterns	0378-top-6-cloud-messaging-patterns.png
	Typical microservice architecture	0396-typical-microservice-architecture.png
	Uber tech stack ci cd	0398-uber-tech-stack-ci-cd.png
	What is cloud native	0413-what-is-cloud-native.png
	How does docker work	0414-how-does-docker-work.png

Show gallery

Preview	Title	File
	Airbnb arch	0014-airbnb-arch.jpg
	Design a notification push system	0042-design-a-notification-push-system.png
	How do search engines work	0103-how-do-search-engines-work.png
	How to ace system design interviews like a boss	0104-how-to-ace-system-design-interviews-like-a-boss.png
	The ultimate software architect knowledge map	0118-the-ultimate-software-architect-knowledge-map.png
	Twitter1 0 tech stack	0122-twitter1-0-tech-stack.jpg
	Uber tech stack overall	0124-uber-tech-stack-overall.png
	Client arch patterns	0143-client-arch-patterns.png
	Design patterns cheat sheet part 2	0167-design-patterns-cheat-sheet-part-2.png
	Diagrams as code twitter	0173-diagrams-as-code-twitter.jpeg
	Elastic search	0182-elastic-search.jpeg
	Google maps	0207-google-maps.png
	Netflix tech stack	0286-netflix-tech-stack.png
	Netflix overal arch	0288-netflix-overal-arch.png
	Proximity service design	0306-proximity-service-design.jpg
	Reliciency patterns	0316-reliciency-patterns.jpg
	System design blueprint	0324-system-design-blueprint.png
	Software architecture styles	0339-software-architecture-styles.png
	Stack overflow architecture	0343-stack-overflow-architecture.png
	System design cheat sheet	0351-system-design-cheat-sheet.png
	My recommended materials for cracking your next technical interview	0353-my-recommended-materials-for-cracking-your-next-technical-interview.png
	The core reddit architecture	0356-the-core-reddit-architecture.png
	Who are the fantastic four of system design	0357-who-are-the-fantastic-four-of-system-design.png
	The open source ai stack	0359-the-open-source-ai-stack.png
	Top 5 trade offs in system designs	0376-top-5-trade-offs-in-system-designs.png
	Top 6 elasticsearch use cases	0380-top-6-elasticsearch-use-cases.png
	Top 6 multithreading design patterns you must know	0381-top-6-multithreading-design-patterns-you-must-know.png
	Twitter architecture 2022 vs 2012	0392-twitter-architecture-2022-vs-2012.jpeg

Show gallery

Preview	Title	File
	Avro	0080-avro.png
	Bloomfilter	0089-bloomfilter.png
	Twitter serving pipeline	0121-twitter-serving-pipeline.jpeg
	Data pipeline overview	0157-data-pipeline-overview.png
	Data terms	0158-data-terms.png
	Data transfer between apps	0159-data-transfer-between-apps.png
	Elk	0183-elk.jpg

Show gallery

Preview	Title	File
	How does visa make money	0041-how-does-visa-make-money.png
	How does ach payment work	0067-how-does-ach-payment-work.png
	Buy something money movement	0127-buy-something-money-movement.jpg
	Double charge	0178-double-charge.jpg
	Foreign exchange	0194-foreign-exchange.png
	Learn payment	0254-learn-payment.png
	Payment reconciliation	0298-payment-reconciliation.jpg
	Payment system	0299-payment-system.jpeg
	Scan to pay	0323-scan-to-pay.png
	Stock exchange	0344-stock-exchange.png
	Swift payment messaging system	0348-swift-payment-messaging-system.png
	The payments ecosystem	0360-the-payments-ecosystem.png
	Upi 2	0400-upi-2.png
	Visa payment	0403-visa-payment.jpg

Show gallery

Preview	Title	File
	How python works	0003-how-python-works.png
	Algorithms that dominate our world	0018-9-algorithms-that-dominate-our-world.png
	Imperative vs functional vs oop	0035-imperative-vs-functional-vs-oop.png
	Memory types	0045-memory-types.png
	How netflix really uses java	0102-how-netflix-really-uses-java.png
	Top 8 programming paradigms 2	0120-top-8-programming-paradigms-2.png
	Concurrency is not parallelism	0150-concurrency-is-not-parallelism.png
	Fundamental pillars of object oriented programming	0197-4-fundamental-pillars-of-object-oriented-programming.png
	Garbage collection 101	0200-garbage-collection-101.png
	Git merge git rebase	0203-git-merge-git-rebase.jpg
	Git vs github	0204-git-vs-github.png
	Git workflow	0205-git-workflow.jpg
	Linux boot process explained	0213-linux-boot-process-explained.png
	How digital signatures work	0219-how-digital-signatures-work.png
	Inter process communication	0234-inter-process-communication.png
	Java collection	0240-java-collection.png
	Javascript js explained	0241-javascript-js-explained.png
	Life is short use dev tools	0256-life-is-short-use-dev-tools.png
	Linux file system explained	0258-linux-file-system-explained.jpg
	Linux permissions copy	0259-linux-permissions-copy.png
	Memory allocation paging vs segmentation	0269-memory-allocation-paging-vs-segmentation.png
	Most used linux	0283-most-used-linux.png
	Program process thread	0304-program-process-thread.png
	Stop loss	0345-stop-loss.jpg

Show gallery

Preview	Title	File
	Apple pay	0002-apple-pay.jpg
	Factor app	0028-12-factor-app.png
	What is a cookie	0043-what-is-a-cookie.png
	Amazon build system	0069-amazon-build-system.jpeg
	Browser render page	0090-browser-render-page.jpg
	Chat app	0134-chat-app.jpeg
	Client handle error	0144-client-handle-error.png
	Cookies	0153-cookies.png
	Cookies vs session	0154-cookies-vs-session.png
	How to release a mobile app	0228-how-to-release-a-mobile-app.png
	Internationalization	0235-internationalization.jpeg
	Seo	0326-seo.jpg
	Session square	0330-session-square.png
	What is css cascading style sheets	0408-what-is-css-cascading-style-sheets.png
	What happens when you type google in your browser	0410-what-happens-when-you-type-google-in-your-browser.png
	What is web 3	0416-what-is-web-3.png

Show gallery

Preview	Title	File
	Google doc	0206-google-doc.png
	Netflix pn	0291-netflix-pn.png
	Do you know why meta google and amazon all stop using leap seconds	0363-do-you-know-why-meta-google-and-amazon-all-stop-using-leap-seconds.jpeg

Show gallery

Preview	Title	File
	Standards developers should know	0015-8-standards-developers-should-know.png
	Good coding principles	0051-10-good-coding-principles.png
	Big endian vs little endian	0084-big-endian-vs-little-endian.png
	Big keys	0085-big-keys.png
	Id generator	0105-id-generator.png
	Chat gpt	0135-chat-gpt.jpeg
	Chatgpt how we get here	0136-chatgpt-how-we-get-here.png
	Consistent hashing	0151-consistent-hashing.png
	Ddd	0163-ddd.png
	Deepseek	0164-deepseek.png
	Dev tester ratio	0170-dev-tester-ratio.png
	Dev ops books	0171-dev-ops-books.jpg
	E commerce works	0179-e-commerce-works.png
	Email	0184-email.jpg
	Email deliver	0185-email-deliver.png
	Experiment framework	0189-experiment-framework.jpg
	Of my favorite engg blogs	0190-9-of-my-favorite-engg-blogs.png
	Fixing bugs automatically at meta scale	0193-fixing-bugs-automatically-at-meta-scale.png
	High availability	0211-high-availability.jpg
	How airtag works	0216-how-airtag-works.png
	How do computer programs run	0218-how-do-computer-programs-run.png
	How does ssh work	0224-how-does-ssh-work.png
	How do we retry on failures	0229-how-do-we-retry-on-failures.png
	Json crack	0242-json-crack.png
	Kafka 101 8 steps to learn the fundamentals of kafka	0246-kafka-101-8-steps-to-learn-the-fundamentals-of-kafka.png
	Levels fyi	0255-levels-fyi.jpg
	Live streaming updated	0260-live-streaming-updated.png
	Log parsing	0263-log-parsing.png
	Middleware png	0276-middleware-png.png
	Multipart upload	0284-multipart-upload.png
	Permission systems	0300-permission-systems.png
	Push notifiction	0309-push-notifiction.jpg
	Quadtree	0311-quadtree.jpg
	Scale to million	0322-scale-to-million.jpg
	Server types	0327-server-types.png
	Ship to prod	0334-ship-to-prod.png
	Ship to prod tools	0335-ship-to-prod-tools.png
	Street view blurring system	0347-street-view-blurring-system.png
	Top 5 kafka use cases	0368-top-5-kafka-use-cases.png
	Top 8 c use cases	0384-top-8-c-use-cases.png
	Top 9 cases behind 100 cpu usage	0386-top-9-cases-behind-100-cpu-usage.png
	Top 9 system integrations	0387-top-9-system-integrations.png
	How wasm work	0406-how-wasm-work.jpeg
	What is an ai agent	0412-what-is-an-ai-agent.png
	What do version numbers mean	0415-what-do-version-numbers-mean.png
	Yt massive upload	0425-yt-massive-upload.png