--- title: "#base64 articles | Hashnode" description: "Explore 54 articles tagged #base64 on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/base64" --- Tag # #base64 54 posts · 1 followers [Mind vs Drive](https://hashnode.com/@mindvsdrive) · [14h ago](https://hashnode.com/posts/hex-to-base64-and-back-one-set-of-bytes-two-ways-to-write-it/6af5709fcb8d249a249f6db2) ### [Hex to Base64 (and Back): One Set of Bytes, Two Ways to Write It](https://mindvsdrivetools.hashnode.dev/hex-to-base64-and-back-one-set-of-bytes-two-ways-to-write-it?utm_source=hashnode&utm_medium=feed) Hex and Base64 are two ways of writing the same raw bytes as plain text. Neither one encrypts, compresses or hides anything. They just turn up in different places. Hex is common in packet captures, ha 6 min read · [mindvsdrivetools.hashnode.dev](https://mindvsdrivetools.hashnode.dev/hex-to-base64-and-back-one-set-of-bytes-two-ways-to-write-it?utm_source=hashnode&utm_medium=feed) [Mind vs Drive](https://hashnode.com/@mindvsdrive) · [1d ago](https://hashnode.com/posts/why-btoa-fails-on-emoji-and-hindi-and-quietly-gets-caf-wrong-base64-encoding-unicode-text-the-right-way/6af4216d0947d3b2e5a546dd) ### [Why btoa() Fails on Emoji and Hindi (and Quietly Gets "café" Wrong): Base64-Encoding Unicode Text the Right Way](https://mindvsdrivetools.hashnode.dev/why-btoa-fails-on-emoji-and-hindi-and-quietly-gets-caf-wrong-base64-encoding-unicode-text-the-right-way?utm_source=hashnode&utm_medium=feed) Disclosure: I built the free Base64 Encoder on base64decodetool.com that I use for checks in this post. If you've ever called btoa() on user input in the browser, you've probably seen this: Uncaught I 6 min read · [mindvsdrivetools.hashnode.dev](https://mindvsdrivetools.hashnode.dev/why-btoa-fails-on-emoji-and-hindi-and-quietly-gets-caf-wrong-base64-encoding-unicode-text-the-right-way?utm_source=hashnode&utm_medium=feed) [Muhammad Wasim](https://hashnode.com/@toolsphare) · [2d ago](https://hashnode.com/posts/base64-is-not-encryption-size-overhead-data-uris-url-safe-variants-and-common-bugs/6af2a7d7b773795e2e142564) ### [Base64 Is Not Encryption: Size Overhead, Data URIs, URL-Safe Variants and Common Bugs](https://toolsphare-dev-2026.hashnode.dev/base64-is-not-encryption-size-overhead-data-uris-url-safe-variants-and-common-bugs?utm_source=hashnode&utm_medium=feed) What Base64 really does, what it costs, and the mistakes that break it in production 7 min read · [toolsphare-dev-2026.hashnode.dev](https://toolsphare-dev-2026.hashnode.dev/base64-is-not-encryption-size-overhead-data-uris-url-safe-variants-and-common-bugs?utm_source=hashnode&utm_medium=feed) [Nibbo](https://hashnode.com/@nibbo-dev) · [Oct 28](https://hashnode.com/posts/base64-data-uris-for-images-when-inlining-helps-when-it-hurts-and-how-to-encode-locally/6ae1b05713fd4e467479bfb6) ### [Base64 Data URIs for Images: When Inlining Helps, When It Hurts, and How to Encode Locally](https://nibbo.hashnode.dev/base64-data-uris-for-images-when-inlining-helps-when-it-hurts-and-how-to-encode-locally?utm_source=hashnode&utm_medium=feed) data:image/png;base64,iVBORw0KGgo... shows up everywhere: email templates, CSS icons, single-file HTML reports, JSON APIs that ship thumbnails. Inlining an image as a Base64 data URI removes an HTTP r 3 min read · [nibbo.hashnode.dev](https://nibbo.hashnode.dev/base64-data-uris-for-images-when-inlining-helps-when-it-hurts-and-how-to-encode-locally?utm_source=hashnode&utm_medium=feed) [Jebitok](https://hashnode.com/@w1t3r) · [Sep 22](https://hashnode.com/posts/packed-light-wireshark-x-cryptography-xor-base64-forensics-tryhackme/6ab2d4f64aa14470ae4d0ebf) ### [Packed Light: Wireshark x Cryptography - XOR & Base64 - Forensics (TryHackMe)](https://www.sharonjebitok.com/packed-light-wireshark-x-cryptography-xor-base64-forensics-tryhackme?utm_source=hashnode&utm_medium=feed) Link to the challenge on TryHackMe: Packed Light 🛎️ Concierge Briefing Tiny packets. Odd hours. Suspiciously regular. Someone's smuggling out the data equivalent of a hotel towel every night, folded 10 min read · [sharonjebitok.com](https://www.sharonjebitok.com/packed-light-wireshark-x-cryptography-xor-base64-forensics-tryhackme?utm_source=hashnode&utm_medium=feed) [Sunny](https://hashnode.com/@sunny1103) · [Aug 30](https://hashnode.com/posts/tryhackme-data-encoding-room-comprehensive-learning-guide-deep-dive/6a943aee41f0dc5b4c7acd05) ### [TryHackMe Data Encoding Room: Comprehensive Learning Guide & Deep Dive](https://cybersecurity-learning.hashnode.dev/tryhackme-data-encoding-room-comprehensive-learning-guide-deep-dive?utm_source=hashnode&utm_medium=feed) Understanding character encoding standards, ASCII byte structures, Unicode variable-length representations (UTF-8, UTF-16, UTF-32), Base64 encoding schemes, and payload transformation techniques through the TryHackMe Data Encoding room. 8 min read · [cybersecurity-learning.hashnode.dev](https://cybersecurity-learning.hashnode.dev/tryhackme-data-encoding-room-comprehensive-learning-guide-deep-dive?utm_source=hashnode&utm_medium=feed) [Yogeshwar Peela](https://hashnode.com/@exploitnotes) · [Aug 18](https://hashnode.com/posts/tryhackme-bugged-writeup/6a83d642e7083cfc6b60dcde) ### [TryHackMe : Bugged - Writeup](https://exploitnotes.hashnode.dev/tryhackme-bugged-writeup?utm_source=hashnode&utm_medium=feed) Solve TryHackMe Bugged by enumerating MQTT, decoding a hidden backdoor, abusing CMD execution, and retrieving the flag without a reverse shell 5 min read · [exploitnotes.hashnode.dev](https://exploitnotes.hashnode.dev/tryhackme-bugged-writeup?utm_source=hashnode&utm_medium=feed) [Yogeshwar Peela](https://hashnode.com/@exploitnotes) · [Aug 4](https://hashnode.com/posts/tryhackme-overheard-at-breakfast/6a716d9dba96c430fd96ed91) ### [TryHackMe : Overheard at Breakfast](https://exploitnotes.hashnode.dev/tryhackme-overheard-at-breakfast?utm_source=hashnode&utm_medium=feed) Complete Overheard at Breakfast THM walkthrough covering OSINT, Gravatar profile lookup, email hashing, Base64 decoding, and flag recovery. 5 min read · [exploitnotes.hashnode.dev](https://exploitnotes.hashnode.dev/tryhackme-overheard-at-breakfast?utm_source=hashnode&utm_medium=feed) [Yogeshwar Peela](https://hashnode.com/@exploitnotes) · [Aug 4](https://hashnode.com/posts/tryhackme-packed-light-writeup/6a7165161ce7b8c122d6bcfa) ### [TryHackMe : Packed Light Writeup](https://exploitnotes.hashnode.dev/tryhackme-packed-light-writeup?utm_source=hashnode&utm_medium=feed) Complete Packed Light THM walkthrough covering PCAP analysis, malware investigation, network forensics, traffic decoding, and flag recovery. 6 min read · [exploitnotes.hashnode.dev](https://exploitnotes.hashnode.dev/tryhackme-packed-light-writeup?utm_source=hashnode&utm_medium=feed) [Jebitok](https://hashnode.com/@w1t3r) · [Jun 2](https://hashnode.com/posts/containment-tryhackme/6a1f14d3b3a66a52394b9012) ### [ContAInment (TryHackMe)](https://www.sharonjebitok.com/containment-tryhackme?utm_source=hashnode&utm_medium=feed) Link to the challenge on TryHackMe: ContAInment Challenge Your Mission You are a Security Analyst at West Tech, a classified defence and R&D contractor. Early this morning, internal monitoring systems 26 min read · [sharonjebitok.com](https://www.sharonjebitok.com/containment-tryhackme?utm_source=hashnode&utm_medium=feed)