Every tool on one bench. Learn them by using them.

Getting started

One workbench instead of a dozen browser tabs

Most of us paste payloads, tokens and logs into whichever online formatter comes up first. Hushbench replaces those sites with one app that never sends your data anywhere. Pick a tool to jump straight to its section.

Getting started

Use it in the browser or on your desktop

Open Hushbench on the web or install the desktop app. Your work stays on your device either way, and your license works in both.

Getting started

What stays on your machine (everything you work on)

Parsing, conversion, queries, diagrams and scans all run in your browser or desktop app. There is no Hushbench server that sees your data, so there is nothing to leak, log or subpoena.

Getting started

Keyboard first, mouse optional

Every tool shares the same workspace. Panels resize by dragging the divider, and there are 15 themes (9 dark, 6 light) in the header. This page has its own quick jump too: press ⌘ K or /.

Getting started

Built for the 800 MB log file, too

Hushbench picks a strategy by file size. Small files render instantly; medium files are parsed in a background worker so the page stays responsive; large files ask before loading, then stream in 1 MB chunks and render only what's on screen (about 10,000 lines or 5,000 tree nodes at a time).

JSON

Paste a payload and get a readable, validated document straight away. Switch between code, tree and table views, query it with JSONPath, diff two versions, or check it against a schema. Files up to 1 GB, all on your device.

• Paste to format. Pasting into the Code view formats the document immediately.
• Table view. Arrays of objects become a grid you can sort, filter and export to CSV or TSV.
• JSONPath queries with one-click examples like $..author and $.store.book[?(@.price < 10)].
• Diff / Compare shows Original, Modified and the Diff Result side by side.
• Schema Validation with quick templates for objects, arrays and OpenAPI.
• Generate models as a Java POJO, C# POCO, Python dataclass or Go struct.

XML

Pretty-print or minify XML, check that it is well-formed, and explore it as a tree. Namespaces, CDATA, comments and right-to-left text all come through intact.

• Format / Prettify with 2 spaces, 4 spaces or tabs, or Minify for transport.
• Validate reports the first well-formedness error and where it is.
• Tree View to fold and browse large documents.
• Generate model classes from a sample document, in the same four languages as JSON.

YAML

One misplaced space can break a deployment. The YAML tool tells you which line is wrong and why, formats the file consistently, and converts it to JSON when another tool needs it.

• Errors that explain themselves: line, cause and a suggested fix.
• YAML → JSON conversion in one click.
• Tree View for deep Kubernetes and CI configs.
• Consistent formatting with 2- or 4-space indentation.

Universal Conversion

JSON, YAML and XML in one workspace. Paste anything, leave From on Auto, choose a target, and the result follows as you type.

• Auto-detects the source format.
• Live: converts on every keystroke. ⇄ swaps source and result.
• Predictable XML: attributes map to attr_<name> keys, text beside attributes maps to value.
• Lists become repeated elements (or <item>), wrapped in <root> when needed.

Smart Diagram

Turn a JSON, YAML or XML document into an interactive graph of cards. Handy for explaining a payload in a review, or for finding where a field lives in a 3,000-line response.

• Two layouts: Left to Right or Top to Bottom, laid out automatically.
• Double-click a card to collapse or expand its branch.
• Click a card and the matching code is highlighted in the editor.
• Personal data stands out: cards holding emails or phone numbers get an amber border.
• Search nodes, plus a minimap once the graph passes 20 cards.
• Long arrays are trimmed to 20 rows with a "+N more" line.

Transform Pipeline

Chain encoding, hashing and encryption steps and see every intermediate result. Unwrap a cookie, prepare a token, or encrypt a secret before you hand it over, all offline.

• Encode & decode: Base64, Base64url, Hex and URL.
• Hash: SHA-256, SHA-384 and SHA-512.
• AES-256-GCM encrypt and decrypt with a passphrase (PBKDF2-SHA-256, 100,000 rounds).
• PBKDF2 derive key with your own salt, iterations and key length.
• JWT decode, offered automatically when the input looks like a token.
• Re-runs as you type, and errors name the step that failed.

Base64

Encode or decode text and files: standard, URL-safe, or a complete data URL ready to paste into HTML or CSS.

• UTF-8 correct: emoji, Arabic and accented text survive the round trip.
• Files too: drop any file to encode it as binary, with progress for files over 5 MB.
• Image preview when the file is an image.
• Decode to a file: Download writes the original bytes, with the extension taken from the data URL.

JWT

A production token is a credential. Decode it here instead of pasting it into a website: read the header and claims, see when it expires, and catch common mistakes.

• Decode header, payload and signature, with time claims shown as dates.
• Validate flags a missing or unknown alg, unsecured none tokens, an odd typ and expired tokens.
• Auto-repair: a token whose payload and signature were glued together is split again, with a warning.
• Knows HS, RS, ES and PS algorithms at 256, 384 and 512 bits.

Protobuf

Decode protobuf binaries against your .proto, or go the other way and encode JSON to binary. Useful for gRPC payloads, queue messages and cached blobs.

• Decode Binary from Base64, hex or a file into readable JSON.
• Encode to Binary: Generate JSON builds a starter message from the schema.
• Schema View analyzes your .proto as you edit it.
• Nested messages, repeated fields, enums and oneofs.

Mermaid

Diagrams as code that live next to your docs and diff cleanly in git. Write the text, get the picture, then zoom, present or export it.

• 10 diagram types: flowchart, sequence, class, state, ER, user journey, Gantt, pie, git graph and C4.
• Zoom from 10% to 500% toward your pointer, plus Fullscreen and Preview Only.
• Export to SVG, or PNG at twice the resolution.
• Open in Atlas Whiteboard turns the diagram into shapes you can rearrange.

Atlas Whiteboard

An infinite canvas for architecture sketches and design sessions, built on Excalidraw, with engineering figures and Mermaid import. Your boards stay on your machine.

• Single-key tools: B rectangle, O circle, D diamond, K connector, T text, F frame, L laser.
• Figures panel: Database, Queue, Server and Actor, plus basic shapes.
• Import Mermaid and get editable shapes.
• Export PNG at 1×, 2× or 3×, SVG, or to the clipboard; save as .excalidraw.
• Autosaves locally as you work. Press ? for every shortcut.

Markdown

A live GitHub-flavored preview with diagrams, math and images, and export to HTML or a styled PDF that is ready to send.

• Mermaid fences render inline, up to 100 diagrams per document.
• Math with KaTeX: $…$, $$…$$, \(…\) and \[…\].
• Images: paste, drop or insert them (up to 5 MB each); they are embedded in the document.
• PDF export (Pro): 6 templates, page sizes from A6 to A0 plus Letter and Legal, cover page, running header, page numbers and watermarks.
• Copy HTML or download a standalone .html file.

Spreadsheet

Open CSV, TSV, XLSX, XLS, ODS and Numbers files and work with them the way you would in a desktop spreadsheet (formulas, filters, charts) without uploading the file anywhere.

• Table Preview for reading; Edit Grid for real spreadsheet work.
• Formulas including the *IFS family and XLOOKUP.
• Data panels: Group by, Chart (bar, line, pie, doughnut), Formula column, Conditional formatting.
• Clean-up tools: Remove duplicates and Text to columns.
• Several sheets per workbook; export to XLSX, XLSB, XLS, ODS, CSV, TSV, JSON or XML.
• Excel-style keys: fill handle, freeze panes, F2, Ctrl+D, Ctrl+; and 20 more.

Web Preview

An HTML, CSS and JavaScript playground with a live preview and a console. Test a snippet, reproduce a bug, or check an email template before you send it.

• Three views: Side by Side, Code and Preview, with optional CSS and JS panes.
• Live: re-renders half a second after you stop typing.
• Console with All, Logs, Warnings and Errors filters, including failed resource loads.
• Sandboxed: your code cannot reach Hushbench or your other data.

Log Tracer

Drop raw logs from several services and get traces back: a trace list, a log-level dashboard and a waterfall timeline for each request. No tracing backend required.

• Formats: Sleuth / OTel, JSON, Log4j, or your own regex with named groups.
• Auto-detects W3C Trace Context, logfmt, Elastic ECS, B3 and Jaeger headers.
• Traces panel: search and sort by duration, log count or first seen.
• Log levels: a donut chart; click a level to filter the source.
• Timeline: zoom in and open any span's logs in a drawer.
• Parses in a background worker; big sources scroll smoothly.

Docker Compose

Validate a compose file, see how its services depend on each other, and turn it into a Helm chart when you move to Kubernetes.

• Four-layer validation: YAML syntax, compose structure, service settings, and references between services.
• Visualize draws the service dependency map.
• Helm Convert generates Chart.yaml, values.yaml, helpers, notes, and a Deployment, Service and volume claim per item.
• Honest conversion notes for depends_on, network_mode, build contexts and bind mounts.

Helm Templates

Render templates against YAML or JSON values and see the final manifest before it reaches a cluster. It works offline and needs no CLI.

• Handlebars syntax: {{app.name}}, {{#if}}, {{#each}} (or range), {{#with}}, {{#unless}}.
• Helpers: default, upper, lower, quote and trim.
• Scaffold builds a values file from the variables in your template.
• Validation Errors drawer, render time and a count of detected variables.

Schema Designer

Paste DDL and get an ER diagram you can rearrange. Change the SQL and the diagram follows; translate the schema between SQL dialects in the browser.

• SQL Conversion between PostgreSQL, MySQL, SQLite, T-SQL and generic SQL.
• Schema Diagram (Sync): the SQL editor and the diagram stay in step both ways.
• Diagram Edit (Layout): drag tables; they snap and align, and editing SQL never moves them.
• Hover a table to highlight its relationships, drawn in crow's-foot notation.
• Export the diagram as PNG, or the converted schema as converted.sql.

SQL Explorer

Open a SQLite file or a PostgreSQL dump and query it in the browser, using the real engines compiled to WebAssembly. No database client to install, and the file never leaves your machine.

• Two engines: official SQLite (sqlite-wasm) and PostgreSQL (PGlite), each in a background worker.
• Schema tree of tables, views and triggers (and enums for Postgres), with a filter.
• SQL editor with highlighting and autocomplete for your own tables and columns.
• Results you can sort, page through and export to CSV or JSON.
• Schema DDL tab with the full CREATE script, ready to copy.
• Samples to practice on, such as window functions on Orders and JSONB on Users.

PII & Secrets

Before a log goes into a ticket or a config goes into a chat, scan it for personal data and leaked credentials. Two layers of detection, both running on your device.

• Pattern layer: emails, phone numbers (including Saudi mobiles), SSN-like and national IDs, IBANs, and card numbers confirmed with the Luhn check.
• Secrets: AWS, GitHub, GitLab, Slack, Stripe and Azure keys, JWTs, PEM private keys and generic API keys, plus the secretlint rule set.
• Entropy check catches random-looking tokens that no rule knows.
• Smart Detection: an on-device AI model finds names, places, organizations, addresses, passports and account numbers. It runs only when you click it.
• Arabic-Indic digits are normalized, so ٠٥٥١٢٣٤٥٦٧ is caught too.
• Filter by type and severity, then View Report or Download MD.

Plans

Free for everyday formats, Pro for the heavy tools

One build of Hushbench, two tiers. The free workbench has no time limit and no sign-in. Pro unlocks the advanced tools and Markdown PDF export with a signed license file that is checked on your device.

Help

Questions people ask