--- title: "Muhammad Wasim (@toolsphare) | Hashnode" description: "Founder of ToolSphare; privacy-minded free developer and productivity utilities. Read the latest articles by Muhammad Wasim on Hashnode." url: "https://hashnode.com/@toolsphare" --- @toolsphare # Muhammad Wasim @toolsphare · Joined September 2026 Founder of ToolSphare; privacy-minded free developer and productivity utilities. [Website](https://toolsphare.com/en/) ### [Diffing JSON Without Losing Your Mind: Key Order, Arrays, Numbers and Noise](https://toolsphare-dev-2026.hashnode.dev/diffing-json-without-losing-your-mind-key-order-arrays-numbers-and-noise?utm_source=hashnode&utm_medium=feed) You changed one setting in a config file, ran git diff, and got forty red and green lines back. Or an API response "looks the same" as yesterday's, yet a test is failing. Comparing JSON sounds trivial 7 min read · [toolsphare-dev-2026.hashnode.dev](https://toolsphare-dev-2026.hashnode.dev/diffing-json-without-losing-your-mind-key-order-arrays-numbers-and-noise?utm_source=hashnode&utm_medium=feed) [13h ago](https://hashnode.com/posts/diffing-json-without-losing-your-mind-key-order-arrays-numbers-and-noise/6af3f87bfc4be55ac0159e1e) ### [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) [1d ago](https://hashnode.com/posts/base64-is-not-encryption-size-overhead-data-uris-url-safe-variants-and-common-bugs/6af2a7d7b773795e2e142564) ### [Regex Without Regret: Anchors, Lazy Quantifiers and Catastrophic Backtracking](https://toolsphare-dev-2026.hashnode.dev/regex-without-regret-anchors-lazy-quantifiers-and-catastrophic-backtracking?utm_source=hashnode&utm_medium=feed) Regular expressions have a reputation for being write-only code. You craft a pattern at 2 a.m., it passes the three examples you tried, and six months later nobody (including you) can say what it matc 6 min read · [toolsphare-dev-2026.hashnode.dev](https://toolsphare-dev-2026.hashnode.dev/regex-without-regret-anchors-lazy-quantifiers-and-catastrophic-backtracking?utm_source=hashnode&utm_medium=feed) [2d ago](https://hashnode.com/posts/regex-without-regret-anchors-lazy-quantifiers-and-catastrophic-backtracking/6af1561301735a92c4b0f0c0) ### [SHA-256, SHA-1 and MD5 in 2026: What a Hash Is Actually For](https://toolsphare-dev-2026.hashnode.dev/sha-256-sha-1-and-md5-in-2026-what-a-hash-is-actually-for?utm_source=hashnode&utm_medium=feed) Hash functions show up everywhere in a developer's week: a checksum next to a download, an ETag in an HTTP response, a Git commit ID, a cache key, a webhook signature. Because they look alike (a long 6 min read · [toolsphare-dev-2026.hashnode.dev](https://toolsphare-dev-2026.hashnode.dev/sha-256-sha-1-and-md5-in-2026-what-a-hash-is-actually-for?utm_source=hashnode&utm_medium=feed) [3d ago](https://hashnode.com/posts/sha-256-sha-1-and-md5-in-2026-what-a-hash-is-actually-for/6af0044bff751536f5d975fb) ### [UUIDs, NanoIDs and ULIDs: Picking an ID Scheme That Will Not Haunt You Later](https://toolsphare-dev-2026.hashnode.dev/uuids-nanoids-and-ulids-picking-an-id-scheme-that-will-not-haunt-you-later?utm_source=hashnode&utm_medium=feed) Every backend eventually invents an ID. Some teams reach for auto-increment integers until a merge, a shard or a public URL makes that choice painful. Others paste uuid4() everywhere and discover year 6 min read · [toolsphare-dev-2026.hashnode.dev](https://toolsphare-dev-2026.hashnode.dev/uuids-nanoids-and-ulids-picking-an-id-scheme-that-will-not-haunt-you-later?utm_source=hashnode&utm_medium=feed) [4d ago](https://hashnode.com/posts/uuids-nanoids-and-ulids-picking-an-id-scheme-that-will-not-haunt-you-later/6aeeb3f0b56e59a22890141a)