Validating JSON in 2026: Browser vs VS Code vs jq
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Last week I watched a senior engineer paste a 4MB JSON payload into VS Code and wait 12 seconds for...
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Title: Validating JSON in 2026: Browser vs VS Code vs jq
URL Source: https://dev.to/savi444/validating-json-in-2026-browser-vs-vs-code-vs-jq-48i0
Published Time: 2026-05-07T17:33:03Z
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Posted on May 7
# Validating JSON in 2026: Browser vs VS Code vs jq
[#javascript](https://dev.to/t/javascript)[#webdev](https://dev.to/t/webdev)[#json](https://dev.to/t/json)[#productivity](https://dev.to/t/productivity)
Last week I watched a senior engineer paste a 4MB JSON payload into VS Code and wait 12 seconds for the linter to finish. Then they Cmd+F'd for the missing bracket. Then they gave up, re-ran the API call, and tried again.
That whole detour was unnecessary. There are three places JSON validation lives in 2026 — the browser, the editor, and the shell — and each one wins in a different scenario. Mixing them up costs a few minutes a day. Once you stop mixing them up, you stop noticing the friction at all.
This is a field guide to which tool actually wins for which task.
**Why "just use VS Code" is wrong**
VS Code's built-in JSON validator is excellent. It is also the worst answer to several common questions, because:
1. It loads the whole file into memory. A 50MB lo
URL Source: https://dev.to/savi444/validating-json-in-2026-browser-vs-vs-code-vs-jq-48i0
Published Time: 2026-05-07T17:33:03Z
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[Skip to content](https://dev.to/savi444/validating-json-in-2026-browser-vs-vs-code-vs-jq-48i0#main-content)
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Posted on May 7
# Validating JSON in 2026: Browser vs VS Code vs jq
[#javascript](https://dev.to/t/javascript)[#webdev](https://dev.to/t/webdev)[#json](https://dev.to/t/json)[#productivity](https://dev.to/t/productivity)
Last week I watched a senior engineer paste a 4MB JSON payload into VS Code and wait 12 seconds for the linter to finish. Then they Cmd+F'd for the missing bracket. Then they gave up, re-ran the API call, and tried again.
That whole detour was unnecessary. There are three places JSON validation lives in 2026 — the browser, the editor, and the shell — and each one wins in a different scenario. Mixing them up costs a few minutes a day. Once you stop mixing them up, you stop noticing the friction at all.
This is a field guide to which tool actually wins for which task.
**Why "just use VS Code" is wrong**
VS Code's built-in JSON validator is excellent. It is also the worst answer to several common questions, because:
1. It loads the whole file into memory. A 50MB lo
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