Check JSON syntax, structure, and potential risks in real time. Includes error navigation, warnings, statistics, and exportable validation reports, all processed locally with no login required.
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Input JSON
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Hasil Validasi
Mulai memvalidasi JSON
Masukkan JSON untuk melihat hasil validasi
Cara memvalidasi JSON online – panduan langkah demi langkah
1Langkah 1 – Tempel atau impor JSON ke validator2Langkah 2 – Tinjau hasil validasi3Langkah 3 – Perbaiki error dan validasi ulang4Langkah 4 – Ekspor laporan validasi
Gunakan validator JSON online ini untuk memeriksa sintaks, struktur, dan integritas data secara real-time, lengkap dengan error, peringatan, dan statistik.
Find the problem before guessing at the fix
The validator does more than say invalid - it shows what broke and where
A lot of JSON does not just look messy; it is actually unparseable. The validator is useful because it tells you where the JSON breaks, what kind of issue it is, and whether there are broader structural risks that matter downstream.
JSON to validate
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{
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"orderId":"SO-1024"
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"items":[
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{
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"sku":"A-1",
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"qty":2,
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}
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]
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}
Validation feedback
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Error 1
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Line 3, Column 3: Expected "," or "}"
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.
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Error 2
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Line 7, Column 5: Trailing comma is not allowed
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.
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Statistics
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Objects:2
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Arrays:1
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Max Depth:3
When there are multiple errors in the same payload, scan the full list first, then decide whether to fix it manually or send it to Repair JSON.
3 validator examples that match real work
These examples cover the most common validation scenarios in development, testing, and operations: API responses, configuration files, and log payloads.
API Debugging
Catch a missing comma in an API response immediately
Useful during API debugging, webhook testing, and response inspection when you need to know whether the backend returned malformed JSON or the payload was copied incorrectly.
JSON tidak valid (koma hilang)
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{
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"user":{
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"id":42,
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"name":"Maeve"
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}
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"roles":["admin","editor"]
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}
Hasil Validasi
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Error
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Line 6, Column 3: Expected "," or "}"
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.
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Suggestion
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Add a comma after the "user" object
This is exactly the kind of issue the validator handles best: mostly-correct JSON with one local syntax break.
Configuration
Spot trailing commas and comments before a deploy fails
A common problem is treating JavaScript object syntax as if it were valid JSON. The validator helps separate what JS allows from what strict JSON actually accepts.
JSON tidak valid (koma hilang)
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{
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"env":"prod",
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"retry":3, // retry count
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"features":{
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"betaCheckout":false,
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}
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}
Hasil Validasi
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Error
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Line 3, Column 15: Comments are not allowed in JSON
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Line 6, Column 3: Trailing comma is not allowed
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.
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Result
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Remove the comment and trailing comma
Running config through the validator before release is usually faster than debugging config failures in production.
Log Review
Use warnings and stats to catch structural risk even when JSON is valid
Some payloads parse successfully but are still risky because of depth, field shape, or payload size. Warnings and statistics help expose that early.
JSON tidak valid (koma hilang)
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{
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"event":"audit",
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"payload":{
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"meta":{
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"trace":{
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"deep":{
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"nested":{
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"value":"..."
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}
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}
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}
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}
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}
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}
Hasil Validasi
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Validation Result
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OK - JSON is valid
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.
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Warning
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Payload depth is high and may be harder to transform or inspect downstream
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.
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Statistics
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Objects:6
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Max Depth:6
Even when JSON is valid, warnings and stats can tell you that downstream processing will be more expensive.
01
Tutorial Step
Langkah 1 – Tempel atau impor JSON ke validator
Start by putting the raw JSON into the input editor. You do not need to clean it up first. One of the main benefits of the validator is catching syntax problems early instead of discovering them only after you send the data to an API or save it as configuration.
Tempel JSON ke editor kiri, atau gunakan Impor untuk memuat dari file, URL, atau clipboard.
Validasi berjalan otomatis saat Anda mengetik, seperti JSON linter live.
Gunakan respons API nyata, file konfigurasi, atau cuplikan log untuk menemukan masalah lebih awal.
Single-line JSON is fine. Monaco diagnostics and structural statistics still work without pre-formatting the input.
Validation updates as you type, so the page also works well as a lightweight live JSON linter.
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Tutorial Step
Langkah 2 – Tinjau hasil validasi
Most people only look at the first error message, but the faster approach is to read the errors panel, warnings panel, and statistics together. Errors tell you what is already broken, warnings tell you what may break later, and statistics tell you how complex the payload really is.
Periksa daftar Kesalahan untuk masalah parse seperti koma yang hilang, kurung yang tidak ditutup, atau escape sequence yang tidak valid.
Tinjau Peringatan untuk nesting yang dalam, string yang sangat besar, atau pola yang mencurigakan.
Gunakan Statistik untuk melihat jumlah objek/array, kedalaman maksimum, dan ukuran keseluruhan.
When a JSON file has multiple issues, do not stop after the first one. Scan the full list first so you can tell whether the problems are isolated or systemic.
If you need to hand the problem off to someone else, the report plus the diagnostics is much more useful than a screenshot alone.
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Tutorial Step
Langkah 3 – Perbaiki error dan validasi ulang
The goal here is not to delete characters blindly. Use the location and context around each error to understand why the JSON broke. Most invalid JSON falls into a small set of patterns: missing commas, single quotes, comments, trailing commas, unmatched brackets, or nested JSON strings that need another pass.
Klik error atau peringatan untuk lompat ke baris dan kolom yang tepat.
Perbaikan umum: tambahkan koma yang hilang, tutup kurung/kurawal, escape karakter khusus, atau hapus trailing comma.
Jika JSON sangat rusak, buka di alat Perbaiki JSON untuk memperbaiki otomatis masalah sintaks umum.
When the file is heavily damaged or the error list is long, move to Repair JSON and let it fix common syntax issues before coming back for validation.
After the payload passes validation, scan the warnings and statistics again so you do not miss structural risks that survived syntax repair.
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Tutorial Step
Langkah 4 – Ekspor laporan validasi
Once the JSON is valid, it is ready for the rest of your workflow. Export a validation report if you need traceability, then move to the formatter, compare tool, schema generator, or table editor based on what you need next.
Klik Laporan untuk mengunduh laporan JSON berisi semua error, peringatan, dan statistik.
Bagikan laporan dengan tim untuk debugging, code review, atau pemeriksaan kontrak API.
Laporan mencakup nomor baris, pesan, dan rekomendasi tingkat tinggi.
If you want to generate a schema, types, or review data in a table, validated JSON is a much more stable starting point.
Putting the validator at the beginning of the workflow usually saves rework later when debugging APIs, editing configs, or generating code.
A more reliable validator workflow
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Paste the rawest version of the JSON into the validator instead of pre-editing it first.
2
Read the errors, warnings, and statistics together so you understand both syntax failures and structural risk.
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Fix small issues in place, but switch to Repair JSON when the payload is heavily damaged or the error list is long.
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Once the payload is valid, move it to the formatter, compare tool, or schema generator for the next stage of work.
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If you need to collaborate, export the report instead of sending screenshots so others can reproduce the problem faster.
Placing the validator at the start of your JSON workflow usually surfaces most downstream problems early, especially during API debugging, config review, and log analysis.
Tips cepat untuk pemula
Sebagian besar JSON tidak valid berasal dari koma yang hilang, trailing comma, atau penggunaan tanda kutip tunggal alih-alih tanda kutip ganda.
Jika Anda melihat pesan kesalahan parse JSON, mulai dari baris dan kolom yang disebutkan.
Validasi JSON sebelum mengirim ke API atau menyimpan ke database agar terhindar dari runtime error dan payload yang rusak.
Before sending JSON to Repair, Compare, or Schema tools, a validation pass usually gives you a cleaner start.
Alat terkait untuk validasi & pemformatan JSON
Padukan alat-alat ini dengan validasi untuk meningkatkan kualitas data dan merapikan workflow JSON.
Validasi JSON memeriksa apakah JSON Anda benar secara sintaks dan konsisten secara struktur, serta menampilkan statistik seperti jumlah tipe, kedalaman nesting, dan ukuran payload.
Jenis kesalahan apa yang akan saya lihat?
Kesalahan umum meliputi koma yang hilang, kurung kurawal/siku yang tidak ditutup, escape sequence yang tidak valid, trailing comma, dan string yang tidak sesuai.
Peringatan itu tentang apa?
Peringatan menyoroti potensi risiko seperti nesting yang terlalu dalam, string yang sangat panjang, atau pola data yang tidak biasa—meskipun JSON valid, hal ini bisa menimbulkan masalah di tahap berikutnya.
Bisakah saya mengunduh laporan validasi?
Ya. Gunakan Laporan untuk mengunduh laporan validasi JSON yang berisi error, peringatan, dan statistik.
What is the difference between JSON validation and JSON repair?
Validation is for finding and explaining what is wrong, with precise locations and diagnostics. Repair is for automatically fixing common syntax problems. Use the validator when you want clarity; use repair when the JSON is too broken to fix efficiently by hand.
Can it handle large JSON files?
Yes. Typical API responses, config files, log snapshots, and medium-to-large JSON payloads work well. Larger payloads may take longer to analyze, but everything still runs locally in the browser.
Is my JSON uploaded anywhere?
No. Validation, diagnostics, and report generation all happen locally in your browser, which makes this page suitable for internal data, config values, and sensitive log payloads.
