Comparison

JSON Formatter Viewer vs Clayshell

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

JSON Formatter Viewer

Features
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Paste messy JSON and get clean, readable, correctly indented output in one tap. JSONViewer formats, validates, and beautifies any payload โ€” right on your iPhone, fully offline. Most JSON tools are websites that make you paste sensitive API data into a stranger's server. JSONViewer keeps everything on your device: paste a response, a config file, or a log export, and it pretty-prints with color syntax highlighting instantly. Invalid JSON is flagged with the exact reason so you fix broken payloads fast โ€” no guessing, no round trips to a browser. WHAT YOU GET - Clean, indented JSON from any pasted or copied payload in one tap - Instant validation that pinpoints exactly why a payload is broken - Minify mode to strip whitespace down to a compact one-liner - An interactive, collapsible tree so you can read deeply nested data at a glance - JSONPath queries that pull the exact value out of a large response - A saved library of your own snippets plus ready-to-use sample payloads PERFECT FOR - Backend and mobile developers debugging API responses on the go - QA engineers checking payloads and config files away from a laptop - Students learning JSON structure with the built-in Learn guide - Anyone who needs to read or clean a JSON blob without opening a website WHY NOT JUST USE A WEB FORMATTER? Online formatters send your JSON to a remote server โ€” a real problem when the payload holds tokens, user records, or internal data. JSONViewer does all parsing on-device, so your data never leaves your phone and works with no signal at all. PRIVACY Your JSON never leaves the device. No accounts, no servers, no tracking โ€” everything runs locally, even in airplane mode. FULL ACCESS The Format tab โ€” paste, validate, beautify, minify, and copy โ€” is free. Premium unlocks the interactive tree view, JSONPath query, saved snippet library, and expand/collapse controls. Premium is available as a weekly or yearly subscription, or a one-time lifetime purchase: - Weekly subscription - Yearly subscription - Lifetime (one-time purchase, no renewal) Payment is charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period. Manage or cancel anytime in App Store settings. Paste your first payload and clean it up now. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? https://web-levi.web.app/#contact

About

Clayshell

Features
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Clayshell is an SSH server manager for people who run their own servers. Add a server once, then do the daily work without leaving the app. TERMINAL A real terminal with full colour, in tabs. Your own shell, as many sessions as you need. FILES Browse the server over SFTP. Upload, download, rename, delete, make files and folders, and preview text files. EDITOR WITH A BACKUP Open a file on the server, edit it and save. Before every save the previous version is kept next to it as a .bak file, and one tap puts it back. If the file changed on the server while you were editing, Clayshell tells you instead of overwriting it. MONITOR CPU, memory, disk, load, uptime and the busiest processes, live, for Linux servers. PM2 See your PM2 processes, start, stop and restart them, and follow their logs. ALERTS Be told when a disk fills up, when CPU or memory stays high, when a PM2 process goes down, or when a server cannot be reached. On the Mac, Clayshell can watch your servers from the menu bar. A small script can also be installed on the server itself, so alerts reach Telegram, ntfy or a webhook even when your devices are asleep. MORE SSH Jump hosts. Import from your SSH config. Port forwarding. Ed25519, ECDSA and RSA keys, or a password. YOUR DATA STAYS WITH YOU โ€ข No account, no analytics, no tracking. Nothing is sent to us. โ€ข Passwords and keys are kept in the Keychain on your device. โ€ข Clayshell only talks to the servers you add. โ€ข It asks before trusting a new server, and stops if a server's key changes. โ€ข An optional lock with Face ID, Touch ID or your passcode. Clayshell has a day and a night look, and works on Mac and iPhone. Monitoring needs a Linux server. The PM2 screen needs PM2 on the server. Server alerts need curl and cron on the server. An RSA key protected by a passphrase is not supported yet.

Screenshots

JSON Formatter Viewer4 screens
Clayshell4 screens

Verdict

The call

The clearest difference is in-app purchases: Clayshell at none against JSON Formatter Viewer's 2. JSON Formatter Viewer's advantage is chart position (#188 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. JSON Formatter Viewer sells 2 in-app purchases, starting at $3.99 per 7 days. Clayshell asks for nothing beyond the download.

Scorecard2 real differences ยท 5 level
JSON Formatter Viewer versus Clayshell: the parameters behind the verdict, then further details
ParameterJSON Formatter ViewerClayshell
PriceFreeFree
Update frequencyEvery 6 weeksโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
Best chart rank#188 โ€” betterโ€”
DevicesiPhoneiPhone, Mac โ€” better
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size5 MB12 MB
Age rating4+4+
DeveloperPhuc PhamArvind Kumar

In-app purchases

2 purchases

JSON Formatter Viewer

Subscriptions2
  • Weekly$3.997 Days
  • Yearly$19.991 Year
None

Clayshell

No in-app purchases

Questions

Is JSON Formatter Viewer free?
JSON Formatter Viewer is free to download, with in-app purchases available.
Is Clayshell free?
Clayshell is free to download, with no in-app purchases.
Do JSON Formatter Viewer or Clayshell have ads?
Neither JSON Formatter Viewer nor Clayshell shows ads.

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